1200-584 - Elin's Tower at dusk, RSPB South Stack, Holy Island, Anglesey, Wales, United Kingdom, Europe

832-402832 - City view, Danube bank with historic old town, fishermens quarter, Metzgerturm and cathedral, Ulm, Baden-Wuerttemberg, Germany, Europe

832-402831 - City view, Danube bank with historic old town, fishermens quarter, Metzgerturm and cathedral, Ulm, Baden-Wuerttemberg, Germany, Europe

845-1130 - Cliffords Tower, York, Yorkshire, England, United Kingdom, Europe

799-4585 - Aerial view of St. Michael's Tower on Glastonbury Tor surrounded by a sea of mist in winter, Glastonbury, Somerset, England, United Kingdom, Europe

799-4539 - St. Michael's Tower on Glastonbury Tor above the tower of St. John the Baptist's Church on a misty morning in winter, Glastonbury, Somerset, England, United Kingdom, Europe

799-4531 - King Alfred's Tower at dawn on a misty winter morning, Stourhead, Somerset, England, United Kingdom, Europe

799-4399 - Aerial view of King Alfred's Tower, a folly near Stourhead, in winter, Somerset, England, United Kingdom, Europe

799-4400 - Aerial view of King Alfred's Tower, a folly, at sunset in winter, near Stourhead, Somerset, England, United Kingdom, Europe

799-4403 - Early morning mists at St. Michael's Tower on Glastonbury Tor in Somerset, England, United Kingdom, Europe

799-4407 - Aerial view of King Alfred's Tower, a folly near Stourhead, in winter, Somerset, England, United Kingdom, Europe

799-4393 - Glastonbury Tor on a sunny September misty morning, Glastonbury, Somerset, England, United Kingdom, Europe

799-4420 - Spectacular sunrise behind Glastonbury Tor on a misty autumn morning, Somerset, England, United Kingdom, Europe

832-394755 - Faerberturm also called Pulverturm, Gunzenhausen, Altmuehltal, Franconian Lake District, Franconia, Bavaria, Germany, Europe

1116-51863 - Bootmaker's Tower; Sighisoara, Mures County, Transylvania Region, Romania

846-3073 - Glastonbury Tor and surrounding hills rising above early morning mist, Glastonbury, Somerset, England, United Kingdom, Europe

844-23706 - View of the King's Tower at Knaresborough Castle, Knaresborough, North Yorkshire, England, United Kingdom, Europe

844-23704 - View of the King's Tower at Knaresborough Castle, Knaresborough, North Yorkshire, England, United Kingdom, Europe

832-388050 - Lighthouse, Leander's Tower or Girls' Tower, Kiz Kulesi, at sunset, island in the Bosporus, Ueskuedar, Istanbul, Turkey, Asia

832-388051 - Lighthouse, Leander's Tower or Girls' Tower, Kiz Kulesi, at sunset, island in the Bosporus, Ueskuedar, Istanbul, Turkey, Asia

832-388052 - Lighthouse, Leander's Tower or Girls' Tower, Kiz Kulesi, blue hour, island in the Bosporus, Ueskuedar, Istanbul, Turkey, Asia

1226-1032 - Clifford's Tower, York Castle, York, North Yorkshire, England, United Kingdom, Europe

1226-1033 - Clifford's Tower, York Castle, York, North Yorkshire, England, United Kingdom, Europe

1202-379 - St. Michael's Tower silhouetted at sunset, on the summit of Glastonbury Tor, Glastonbury, Somerset, England, United Kingdom, Europe

1202-281 - An historic monument at an historic place, Smeaton's Tower, on Plymouth Hoe, in the city of Plymouth, Devon, England, United Kingdom, Europe

799-4014 - View by drone of St. Michael's Tower on Glastonbury Tor at dawn in winter, Somerset, England, United Kingdom, Europe

190-9828 - Clifford's Tower, York, Yorkshire, England, United Kingdom, Europe

190-9827 - Clifford's Tower, York, Yorkshire, England, United Kingdom, Europe

799-3972 - St. Michael's Tower on Glastonbury Tor, Glastonbury, Somerset, England, United Kingdom, Europe

799-3976 - Vista over Glastonbury towards Glastonbury Tor on a misty winter morning, Somerset, England, United Kingdom, Europe

799-3964 - Woman watching sun rising from Glastonbury Tor, Somerset, England, United Kingdom, Europe

799-3969 - Glastonbury Tor on a beautiful winter morning, Glastonbury, Somerset, England, United Kingdom, Europe

799-3971 - Wells Cathedral and Glastonbury Tor at dawn in winter, Wells, Somerset, England, United Kingdom, Europe

799-3962 - St. Michael's Tower on Glastonbury Tor at dawn in winter, Glastonbury, Somerset, England, United Kingdom, Europe

799-3918 - Aerial view by drone of frosty winter morning at Glastonbury Tor, Somerset, England, United Kingdom, Europe

799-3922 - Aerial view by drone of frosty winter morning at Glastonbury Tor, Somerset, England, United Kingdom, Europe

799-3913 - Aerial view by drone of Glastonbury Tor on a frosty morning on the Somerset Levels, Somerset, England, United Kingdom, Europe

799-3917 - Aerial view by drone of frosty winter morning at Glastonbury Tor, Somerset, England, United Kingdom, Europe

799-3919 - Aerial view by drone of frosty winter sunrise over Glastonbury Tor, Somerset, England, United Kingdom, Europe

1255-17 - Glastonbury Tor rising above a misty landscape on an autumn morning, Somerset, England, United Kingdom, Europe

801-2721 - Shoemaker's Tower, Sighisoara, UNESCO World Heritage Site, Mures County, Transylvania Region, Romania, Europe

1265-63 - Stephen's Tower in Citadel Square, Baia Mare, Romania, Europe

832-382433 - Maiden's Tower in the Bosporus, left the Blue Mosque and Hagia Sophia; from Uskudar, Istanbul, Turkey, Asia

1292-360 - O'Brien's Tower, Cliffs of Moher, Cliffs Coastal Walk, County Clare, Munster, Republic of Ireland, Europe

1188-919 - View of the Chkalov Stairs leading to the Kremlin in Nizhny Novgorod on the Volga river, Russia, Europe

1240-239 - Clonmacnoise, County Offaly, Leinster, Republic of Ireland, Europe

667-2626 - Cityscape view from the Patkuli viewing platform, Old Town, UNESCO World Heritage Site, Tallinn, Estonia, Baltic States, Europe

1184-1666 - Cliffs of Moher, The Burren, County Clare, Munster, Republic of Ireland, Europe

1184-1667 - Cliffs of Moher, The Burren, County Clare, Munster, Republic of Ireland, Europe

1184-1670 - Cliffs of Moher, The Burren, County Clare, Munster, Republic of Ireland, Europe

1240-189 - Reginald's Tower, Waterford, County Waterford, Munster, Republic of Ireland, Europe

1132-353 - Red Square, St. Basil's Cathedral and the Saviour's Tower of the Kremlin, UNESCO World Heritage Site, Moscow, Russia, Europe

1132-346 - Red Square, St. Basil's Cathedral and the Savior's Tower of the Kremlin, UNESCO World Heritage Site, Moscow, Russia, Europe

1132-330 - Red Square, St. Basil's Cathedral and the Savior's Tower of the Kremlin, UNESCO World Heritage Site, Moscow, Russia, Europe

1132-331 - Red Square, St. Basil's Cathedral and the Savior's Tower of the Kremlin lit up at night, UNESCO World Heritage Site, Moscow, Russia, Europe

492-3589 - Smeaton's Tower on The Hoe overlooks The Sound, Plymouth, Devon, England, United Kingdom, Europe

1178-12922 - USA, Wyoming, Clouds over Devil's Tower

1178-8303 - USA, Wyoming, Clouds over Devil's Tower

857-86581 - A woman hiking with her backpack below Devil's Tower in Devil's Tower National Monument, Wyoming, Devils Tower, Wyoming, usa

857-86580 - A woman hiking with her backpack below Devil's Tower in Devil's Tower National Monument, Wyoming, Devils Tower, Wyoming, usa

801-1164 - Large Governor's Tower on the right dates from 1493, Korcula Town, Korcula Island, Croatia, Europe

166-5463 - Smeaton's Tower, Plymouth Hoe, Plymouth, Devon, England, United Kingdom, Europe

1116-4687 - Tower Of David's Museum, Jerusalem, Israel

1116-3963 - Carrickkildavnet Castle, Achill Island, County Mayo, Ireland;

64-1367 - South Stack (Ynys Lawd), an island situated just off Holy Island on the North West coast of Anglesey, Wales, United Kingdom, Europe

166-5318 - King Alfred's Tower, Stourhead, Wiltshire, England, United Kingdom, Europe

698-2596 - Clifford's Tower, the former Keep of York Castle, named after Roger de Clifford who was hanged there in 1322, York, Yorkshire, England, United Kingdom, Europe

764-2174 - Devil's Tower, Devil's Tower National Monument, Wyoming, United States of America, North America

764-2175 - Devil's Tower reflected in a stream, Devil's Tower National Monument, Wyoming, United States of America, North America

764-2173 - Devil's Tower, Devil's Tower National Monument, Wyoming, United States of America, North America

815-1066 - View of the Saintlowe Tower from the west with Gaunt's Tower and Leicester's Building beyond, Kenilworth Castle, Kenilworth, Warwickshire, England, United Kingdom, Europe

815-746 - View from south east of Clifford's Tower, York, Yorkshire, England, United Kingdom, Europe

815-785 - St. Michael's Tower, Glastonbury Tor, Somerset, England, United Kingdom, Europe

815-289 - Troubadour's tower, Aljaferia Palace, UNESCO World Heritage Site, Zaragoza, Aragon, Spain, Europe

306-3785 - Count's tower, San Sebastian, La Gomera, Canary Islands, Spain, Europe

764-1275 - Devil's Tower at sunset, Devil's Tower National Monument, Wyoming, United States of America, North America

794-598 - Kizkulesi (Maiden's Tower), the Bosphorus, Istanbul, Turkey, Europe

794-554 - Kizkulesi (Maiden's Tower), the Bosphorus, Istanbul, Turkey, Europe

776-1340 - Reginald's Tower, Waterford City, County Waterford, Munster, Republic of Ireland, Europe

776-1342 - Reginald's Tower, Waterford City, County Waterford, Munster, Republic of Ireland, Europe

777-1998 - Devils Tower National Monument, Wyoming, United States of America, North America

777-1949 - Devils Tower National Monument, Wyoming, United States of America, North America

252-11248 - The Council House (Casa Sfatului), dating from 1420 topped by a Trumpeter's Tower, the old city hall now houses the Brasov Historical Museum, illuminated at dusk, Piata Sfatului, Brasov, Transylvania, Romania, Europe

252-11247 - The Council House (Casa Sfatului) dating from 1420 topped by a Trumpeter's Tower, the old city hall now houses the Brasov Historical Museum, illuminated at dusk, Piata Sfatului, Brasov, Transylvania, Romania, Europe

252-11245 - Piata Sfatului, the centre of medieval Brasov, the Council House (Casa Sfatului) dating from 1420 topped by a Trumpeter's Tower, the old city hall now houses the Brasov Historical Museum, Brasov, Transylvania, Romania, Europe

252-11244 - Piata Sfatului, the centre of medieval Brasov, Council House (Casa Sfatului) dating from 1420 topped by a Trumpeter's Tower, and old city hall now housing the Brasov Historical Museum, Brasov, Transylvania, Romania, Europe

252-11239 - Piata Sfatului, the centre of medieval Brasov, the Council House (Casa Sfatului) dating from 1420 topped by a Trumpeter's Tower, the old city halll now houses the Brasov Historical Museum, illuminated at dusk, Brasov, Transylvania, Romania, Europe

120-1736 - Statue of Henry VI and Lupton's Tower, Eton College, Berkshire, England

120-1735 - Statue of Henry VI, the Founder, and Lupton's Tower, Eton College, Berkshire, England, UK

197-5720 - Boats and waterfront, McCaig's Tower on hill, Oban, Argyll, Strathclyde, Scotland, UK, Europe

747-138 - Devil's Tower, Devil's Tower National Monument, Wyoming, United States of America, North America

747-139 - Devil's Tower, Devil's Tower National Monument, Wyoming, United States of America, North America

252-4298 - O'Brian's Tower and Breanan Mor seastack looking from Hag's Head, the Cliffs of Moher (230m cliffs), County Clare, Munster, Republic of Ireland (Eire), Europe

149-4837 - Tour de Constance (Constance's tower) and city wall, Aigues-Mortes, Bouches-du-Rhone, France, Europe

197-1685 - Devil's Tower, Wyoming, United States of America, North America

94-2402 - Devil's Tower, South Dakota, United States of America (U.S.A.), North America

390-55 - Smeatons Tower lighthouse on The Hoe in Plymouth, Devon, England, United Kingdom, Europe

685-387 - Devil's Tower National Monument, Wyoming, United States of America, North America

685-385 - Devil's Tower National Monument, Wyoming, United States of America, North America

767-9 - Devil's Tower National Monument, Wyoming, United States of America, North America