1188-1070 - View of the Victorian era Iron Bridge in Chiang Mai,Thailand

1188-1069 - Tourist boat sailing by the Victorian era Iron Bridge in Chiang Mai,Thailand

860-292276 - The Petrified Forest National Park is home to thousands of fossilized tree trunks approximately 200 million years old (Triassic period). Arizona. USA.

1373-252 - View of the Blue Mosque, also known as the Sultan Ahmed Mosque, in Istanbul, Turkey, from Sultanahmet Park. Constructed between 1609 and 1617, it stands as an Ottoman-era historical imperial mosque and remains a functioning mosque today.

1373-251 - View of the Blue Mosque, also known as the Sultan Ahmed Mosque, in Istanbul, Turkey, from Sultanahmet Park. Constructed between 1609 and 1617, it stands as an Ottoman-era historical imperial mosque and remains a functioning mosque today.

1373-248 - Detail of the Blue Mosque in Istanbul, also known as the Sultan Ahmed Mosque, an Ottoman-era historical imperial mosque located in Istanbul, Turkey. It was constructed between 1609 and 1617 during the rule of Ahmed I and remains a functioning mosque today

1373-247 - Detail of the Blue Mosque in Istanbul, also known as the Sultan Ahmed Mosque, an Ottoman-era historical imperial mosque located in Istanbul, Turkey. It was constructed between 1609 and 1617 during the rule of Ahmed I and remains a functioning mosque today

1373-243 - View of the Blue Mosque in Istanbul, also known as the Sultan Ahmed Mosque, an Ottoman-era historical imperial mosque located in Istanbul, Turkey. It was constructed between 1609 and 1617 during the rule of Ahmed I and remains a functioning mosque today.

1373-239 - View of the Blue Mosque in Istanbul, also known as the Sultan Ahmed Mosque, an Ottoman-era historical imperial mosque located in Istanbul, Turkey. It was constructed between 1609 and 1617 during the rule of Ahmed I and remains a functioning mosque today.

1373-229 - View of the Blue Mosque in Istanbul, also known as the Sultan Ahmed Mosque, an Ottoman-era historical imperial mosque located in Istanbul, Turkey. It was constructed between 1609 and 1617 during the rule of Ahmed I and remains a functioning mosque today.

1373-119 - Statue of Julius Caesar located at the Palatine Gate, a Roman-era city gate, the Porta Principalis Dextra of the ancient town giving entry through the Julia Augusta Taurinorum walls from the North side, Turin, Piedmont, Italy, Europe

1373-117 - Statue of Julius Caesar located at the Palatine Gate, a Roman-era city gate, the Porta Principalis Dextra of the ancient town giving entry through the Julia Augusta Taurinorum walls from the North side, Turin, Piedmont, Italy, Europe

1373-101 - The Palatine Gate (Porta Palatina), a Roman-era city gate, the Porta Principalis Dextra (Right-Side Main Gate) of the ancient town, giving entry through the Julia Augusta Taurinorum walls from the North side, Turin, Piedmont, Italy, Europe

1373-99 - The Palatine Gate (Porta Palatina), a Roman-era city gate, the Porta Principalis Dextra (Right-Side Main Gate) of the ancient town, giving entry through the Julia Augusta Taurinorum walls from the North side, Turin, Piedmont, Italy, Europe

1358-255 - Castlerigg Stone Circle, dating from the Neolithic era, around 3000 BC, near Keswick, Lake District National Park, UNESCO World Heritage Site, Cumbria, England, United Kingdom, Europe

826-780 - St. Aidan's Church, a 12th century place of worship, a key location in spreading Christianity during the Anglo-Saxon era, and its churchyard, Bamburgh, Northumberland, England, United Kingdom, Europe

1112-7688 - The Ottoman-era Muhammad Ali Mosque, completed in 1848, overlooking Cairo from atop the Citadel, Cairo, Egypt, North Africa, Africa

1112-7673 - The Ottoman-era Muhammad Ali Mosque, completed in 1848, The Citadel, Cairo, Egypt, North Africa, Africa

1112-7668 - The Ottoman-era Muhammad Ali Mosque, completed in 1848, overlooking Cairo from atop the Citadel, Cairo, Egypt, North Africa, Africa

1112-7665 - The Ottoman-era Muhammad Ali Mosque, completed in 1848, overlooking Cairo from atop the Citadel, Cairo, Egypt, North Africa, Africa

1112-7663 - The Ottoman-era Muhammad Ali Mosque, completed in 1848, overlooking Cairo from atop the Citadel, Cairo, Egypt, North Africa, Africa

1112-7662 - The Ottoman-era Muhammad Ali Mosque, completed in 1848, overlooking Cairo from atop the Citadel, Cairo, Egypt, North Africa, Africa

1112-7657 - The Ottoman-era Muhammad Ali Mosque, completed in 1848, overlooking Cairo from atop the Citadel, Cairo, Egypt, North Africa, Africa

1112-7654 - The Ottoman-era Muhammad Ali Mosque, completed in 1848, overlooking Cairo from atop the Citadel, Cairo, Egypt, North Africa, Africa

1112-7642 - The Ottoman-era Muhammad Ali Mosque, completed in 1848, overlooking Cairo from atop the Citadel, Cairo, Egypt, North Africa, Africa

832-399392 - Panagia Chozoviotissa is an Orthodox rock monastery on the Greek Cycladic island of Amorgos, said to have been founded in the early 9th century, in the Byzantine era, by monks from Palestine. It is the second oldest monastery in Greece, Amorgos, Greece, Europe

832-399391 - Panagia Chozoviotissa is an Orthodox rock monastery on the Greek Cycladic island of Amorgos, said to have been founded in the early 9th century, in the Byzantine era, by monks from Palestine. It is the second oldest monastery in Greece, Amorgos, Greece, Europe

832-397470 - Uttar Pradesh, Agra Fort, the Red Fort is a fortification and palace complex from the era of the Mughal emperors, part of the fortification complex, North India, India, Asia

832-397469 - Uttar Pradesh, Agra Fort, the Red Fort is a fortification and palace complex from the era of the Mughal emperors, North India, India, Asia

805-1505 - Modern BSE skyscraper, formerly the Bombay Stock Exchange, overshadows run-down three storey Raj era building below, Mumbai, India, Asia

1350-5997 - Political demonstration for the independence of Catalonia. Passeig de Gracia.October 19, 2014. Barcelona. Catalonia. Spain.

1350-6051 - Political demonstration for the independence of Catalonia. Catalunya square.October 19, 2014. Barcelona. Catalonia. Spain.

832-394317 - Callanish Stones from the Neolithic era, Isle of Lewis, Outer Hebrides, Scotland, UK

860-290212 - Les Terres Noires de Robine sur Galabre under the snow. Jurassic (Toarcian) marls rich in organic matter, tender and very sensitive to gullying, colonized mainly by Scots pines and forming remarkable reliefs in the Digne Geological Reserve, Alpes de Haute Provence, France.

860-290211 - Les Terres Noires de Robine sur Galabre under the snow. Jurassic (Toarcian) marls rich in organic matter, tender and very sensitive to gullying, colonized mainly by Scots pines and forming remarkable reliefs in the Digne Geological Reserve, Alpes de Haute Provence, France.

860-290213 - Les Terres Noires de Robine sur Galabre under the snow. Jurassic (Toarcian) marls rich in organic matter, tender and very sensitive to gullying, colonized mainly by Scots pines and forming remarkable reliefs in the Digne Geological Reserve, Alpes de Haute Provence, France.

1349-852 - Cosmic Reionization (Annotated)

860-288797 - Remarkable flysch formations of Deba, Basque Coast Geopark, Basque Country, Spain. Flysch formed at the end of the Mesozoic era in the Cretaceous - flyschs are formed by sediment accumulation following repeated submarine avalanches, due to earthquakes, and producing after compaction and crystallization very regular layers of sandstone and limestone here recovered by Pyrenean orogeny and released by erosion.

860-288796 - Remarkable flysch formations of Deba, Basque Coast Geopark, Basque Country, Spain. Flysch formed at the end of the Mesozoic era in the Cretaceous - flyschs are formed by sediment accumulation following repeated submarine avalanches, due to earthquakes, and producing after compaction and crystallization very regular layers of sandstone and limestone here recovered by Pyrenean orogeny and released by erosion.

805-506 - Street snack seller with his wheeled stall outside beautiful old Raj era building in Kolkata back street, West Bengal, India, Asia

805-507 - Running rickshaw wallah outside beautiful old Raj era Kolkata building in Kolkata backstreet, West Bengal, India, Asia

846-1137 - Portuguese era balcony in the old quarter, Fontainhas, Panjim, Goa, India, Asia

1184-4784 - Callanish Stones, standing stones from the Neolithic era, Isle of Lewis, Outer Hebrides, Scotland, United Kingdom, Europe

1184-4782 - Callanish Stones, standing stones from the Neolithic era, Isle of Lewis, Outer Hebrides, Scotland, United Kingdom, Europe

1184-4783 - Callanish Stones, standing stones from the Neolithic era, Isle of Lewis, Outer Hebrides, Scotland, United Kingdom, Europe

1184-4786 - Callanish Stones, standing stones from the Neolithic era, Isle of Lewis, Outer Hebrides, Scotland, United Kingdom, Europe

1184-4785 - Callanish Stones, standing stones from the Neolithic era, Isle of Lewis, Outer Hebrides, Scotland, United Kingdom, Europe

1176-1361 - Cumberland Terrace, a row of luxurious Regency era houses by the architect John Nash next to Regents Park in Central London, England, United Kingdom, Europe

832-385691 - Suspension bridge Q'iswachaka from the Inca era, rope bridge of braided Ichu grass (Jarava ichu) over Rio Apurimac, Canas province, Peru, South America

826-752 - The Byzantine-era fortress, illuminated at dusk, on Guvercin Ada (Pigeon Island), on the Aegean coast, in Kusadasi, Turkey, Asia Minor, Eurasia

826-753 - The Byzantine era fortress on Guvercin Ada (Pigeon Island), looking into the Aegean Sea, in the harbour of Kusadasi, Turkey, Asia Minor, Eurasia

1292-1734 - Popular houses of the fascist era, Latina (Littoria), Latina, Lazio, Italy, Europe

860-288157 - Cliff with remarkable stratifications, folded layers of marls and limestones of the Lower Jurassic, above Bassey near Bourg d'Oisan, Ecrins NP, Alps, France

860-288156 - Cliff with remarkable stratifications, folded layers of marls and limestones of the Lower Jurassic, above Bassey near Bourg d'Oisan, Ecrins NP, Alps, France

860-287767 - Iconic golden cliffs West Bay and Hive Beach Burton Bradstock Jurassic Coast Dorset UK

860-287769 - Iconic golden cliffs West Bay and Hive Beach Burton Bradstock Jurassic Coast, Dorset, UK

1172-4764 - Ujigami Shrine, Kyoto, Japan

1172-4763 - Tenryu-ji Temple, Kyoto, Japan

1167-2033 - Award-winning Herring Era Museum, fjord scenery, reflections, Siglufjordur, (Siglufjorour), stunning Summer day, North Iceland, Europe

1167-2042 - Tourists at the busy, award-winning Herring Era Museum, Siglufjordur, (Siglufjorour), stunning Summer day, North Iceland, Europe

1167-2040 - Tourists at the busy, award-winning Herring Era Museum, Siglufjordur, (Siglufjorour), stunning Summer day, North Iceland, Europe

712-2831 - Safavid era painting, Chehel Sotun Palace, Isfahan, Iran, Middle East

712-2830 - Safavid era painting, Chehel Sotun Palace, Isfahan, Iran, Middle East

712-2881 - Oljeitu Mausoleum, the Mongolian Sultan of Ilkhanid Mongol era, Soltaniyeh, Zanjan Province, Iran, Middle East

712-2882 - Oljeitu Mausoleum, the Mongolian Sultan of Ilkhanid Mongol era, Soltaniyeh, Zanjan Province, Iran, Middle East

712-2829 - Safavid era painting, Chehel Sotun Palace, Isfahan, Iran, Middle East

857-95487 - People walking the wet city streets in Lucca, a city and commune in Tuscany, Central Italy, on the Serchio, a fertile plain near the Tyrrhenian Sea. It is the capital of the Province of Lucca. It is famous for its intact Renaissance-era city walls.

857-95488 - Front view of people walking the wet city streets in Lucca, a city and commune in Tuscany, Central Italy, on the Serchio, a fertile plain near the Tyrrhenian Sea. It is the capital of the Province of Lucca. It is famous for its intact Renaissance-era city walls.

1263-130 - Communist era buildings reflected in the Dimbovita River in Bucharest, Romania, Europe

1276-108 - Hassan Pasha Mosque and The Venetian era harbour and the lighthouse at the port of Chania, Crete, Greek Islands, Greece, Europe

1276-106 - A horse and cart for city tours, at the Venetian era harbour, at the Mediterranean port of Chania (Canea), Crete, Greek Islands, Greece, Europe

149-6674 - The French colonial era General Post Office in Ho Chi MInh City, Vietnam, Indochina, Southeast Asia, Asia

1274-24 - Genex Tower, brutalist architecture from former Yugoslavia Communist era, Belgrade, Serbia, Europe

807-1810 - Victorian era Pier, Llandudno, Conwy County, North Wales, Wales, United Kingdom, Europe

746-73264 - Hera temple also called Nettuno temple or Poseidon temple, Paestum archaeological area, Campania, Italy

746-73271 - Hera temple also called Nettuno temple or Poseidon temple, Paestum archaeological area, Campania, Italy

746-73268 - Hera temple also called Nettuno temple or Poseidon temple, Paestum archaeological area, Campania, Italy

746-73266 - Hera temple also called Nettuno temple or Poseidon temple, Paestum archaeological area, Campania, Italy

746-49152 - Communist era statues are on permanent display in the Statue Park outside Budapest, Hungary, Europe

746-49154 - Communist era statues are on permanent display in the Statue Park outside Budapest, Hungary, Europe

450-4211 - Outside the entrance to the Apartheid Museum showing the old whites and non-whites signs from apartheid era, Johannesburg, South Africa, Africa

557-3405 - Ottoman era mosque in Be'er Sheva, The Museum of Islamic and Near Eastern Cultures, Be'er Sheva, Israel, Middle East

1167-871 - Elevated view of city, from Soviet era Memorial to Unknown Soldiers and Heroes, Zaisan Hill, Ulaanbaatar (Ulan Bator), Mongolia, Central Asia, Asia

1167-870 - Soviet era memorial to commemorate Unknown Soldiers and Heroes, Zaisan Hill, Ulaanbaatar (Ulan Bator), Mongolia, Central Asia, Asia

1113-99537 - Royal gardens and Residenz, baroque era, Wuerzburg, Franconia, Bavaria, Germany, UNESCO

1176-197 - A giant Sukhothai era sitting Buddha, Wat Si Chum, Sukhothai Historical Park, UNESCO World Heritage Site, Thailand, Southeast Asia, Asia

1176-196 - A giant Sukhothai era sitting Buddha, Wat Si Chum, Sukhothai Historical Park, UNESCO World Heritage Site, Thailand, Southeast Asia, Asia

1176-194 - A Sukhothai era Buddha at Wat Mahathat, Sukhothai Historical Park, UNESCO World Heritage Site, Thailand, Southeast Asia, Asia

1176-200 - A giant Sukhothai era sitting Buddha, Wat Si Chum, Sukhothai Historical Park, UNESCO World Heritage Site, Thailand, Southeast Asia, Asia

857-86745 - Frederiksted, St. Croix: Bedroom window detail of the main estate house at Estate Whim. Now a museum, this restored sugar and rum estate traces its Danish beginnings to 1733-35. Listed on the National Register of Historic Places, it is furnished to the 1810 era with outbuildings that include a cookhouse, an earlier windmill, and the remains of a sugar factory.

1126-1289 - Communist Era Architecture, Nowa Huta, Krakow, Poland, Europe

1126-1288 - Ludowy Theatre, Communist Era architecture, Nowa Huta, Krakow (Cracow), Poland, Europe

1176-112 - Evening rush hour at the British Raj era Chhatrapati Shivaji Terminus (Victoria Terminus), UNESCO World Heritage Site, Mumbai, Maharashtra, India, Asia

832-369821 - Life in the Baroque era, 18th century, Prussian uniform of the "Potsdam Giants", Schiller Jahrhundertfest festival, Marbach am Neckar, Baden-Wuerttemberg, Germany, Europe

832-370540 - Get together of the community of interests for historical performance of the 18th century, moated castle Linn, Krefeld, NRW, Germany

832-369823 - Life in the Baroque era, 18th century, Prussian uniform of the "Potsdam Giants", Schiller Jahrhundertfest festival, Marbach am Neckar, Baden-Wuerttemberg, Germany, Europe

832-370539 - Men wearing Prussian infantry uniform, members of the community of interests for historical performance of the 18th century, moated castle Linn, Krefeld, NRW, Germany

832-369822 - Life in the Baroque era, 18th century, Prussian uniform of the "Potsdam Giants", Schiller Jahrhundertfest festival, Marbach am Neckar, Baden-Wuerttemberg, Germany, Europe

83-12776 - Saracen Arab era Pepoli Castle, now a hotel, in historic town high above Trapani at 750m, Erice, Trapani, Sicily, Italy, Mediterranean, Europe

83-12777 - Saracen Arab era Pepoli Castle, now a hotel, in historic town high above Trapani at 750m, Erice, Trapani, Sicily, Italy, Mediterranean, Europe