1131-1672 - Bebelplatz during the Festival of Lights, Unter den Linden, Berlin, Germany, Europe

1131-1686 - Berlin Cathedral, UNESCO World Heritage Site, Museum Island, Unter den Linden, Berlin, Germany, Europe

1131-1691 - Spittel colonnade, Unter den Linden, Berlin, Germany, Europe

1131-1694 - Konzerthaus Berlin Concert Hall and French Cathedral, Gendarmen square, Unter den Linden, Berlin, Germany, Europe

1131-1674 - Brandenburg Gate during the Festival of Lights, Pariser Square, Unter den Linden, Berlin, Germany, Europe

1113-106782 - Aerial view of two cyclists on hiking and cycling path through the dunes of Westerduinen, near Den Hoorn, Texel, West Frisian Islands, Friesland, Netherlands, Europe

832-393552 - Red fox (Vulpes vulpes), pup in front of its den, Lusatia, Saxony, Germany, Europe

1131-1651 - The Berlin Palace (Humboldt Forum) along the Spree River and the Berliner Dom, Unter den Linden, Berlin, Germany, Europe

1131-1653 - Portal in the Passage inner courtyard, The Berlin Palace (Humboldt Forum), Unter den Linden, Berlin, Germany, Europe

1131-1654 - Great Hall seen from the Upper Gallery, The Berlin Palace (Humboldt Forum), Unter den Linden, Berlin, Germany, Europe

1131-1650 - River promenade and Spree terraces at the new Berlin Palace (Humboldt Forum), Unter den Linden, Berlin, Germany, Europe

1131-1657 - Humboldt Lab, The Berlin Palace (Humboldt Forum), Unter den Linden, Berlin, Germany, Europe

1131-1655 - The Berlin Palace (Humboldt Forum) along the Spree Rriver, and Berliner Dom illuminated at night, Unter den Linden, Berlin, Germany, Europe

1131-1652 - Baroque gate in the Foyer, The Berlin Palace (Humboldt Forum), Unter den Linden, Berlin, Germany, Europe

1131-1656 - River promenade and Spree terraces at the new Berlin Palace (Humboldt Forum), Unter den Linden, Berlin, Germany, Europe

1131-1649 - Portal in the Passage inner courtyard, The Berlin Palace (Humboldt Forum), Unter den Linden, Berlin, Germany, Europe

1349-1363 - Atlantic Wolffish

832-391827 - Wooden stairs to the ""Bear's Den"" Tafone Rock, Lapland, Inari, Finland, Europe

832-391825 - Wooden stairs to the ""Bear's Den"" Tafone Rock, Inari, Lapland, Finland, Europe

832-391922 - Black-tailed Prairie Dog (Cynomys ludovicianus) young with adult at burrow, Germany, Europe

832-391934 - Timberwolf, American wolf (Canis lupus occidentalis), captive, pup at den, Germany, Europe

832-391918 - Black-tailed Prairie Dog (Cynomys ludovicianus) young with adult at burrow, Germany, Europe

832-391939 - Timberwolf, American wolf (Canis lupus occidentalis), captive, pups with adult at den, Germany, Europe

832-391940 - Timberwolf, American wolf (Canis lupus occidentalis), captive, pup at den, Germany, Europe

832-391923 - Black-tailed Prairie Dog (Cynomys ludovicianus) young with adult at burrow, Germany, Europe

832-391916 - Black-tailed Prairie Dog (Cynomys ludovicianus) Young on burrow, Germany, Europe

832-391921 - Black-tailed Prairie Dog (Cynomys ludovicianus) young with adult at burrow, Germany, Europe

832-391917 - Black-tailed Prairie Dog (Cynomys ludovicianus) young with adult at burrow, Germany, Europe

1350-2017 - Three Arctic Ground Squirrel Babies (Uroticellus parryii) exiting their den. Yukon Territory, Canada

1350-191 - Mother Polar Bear (ursus maritimus) with cubs COY near snow den at Wapusk National Park, Hudson Bay, Churchill area, Manitoba, Northern Canada

1350-192 - Mother Polar Bear (ursus maritimus) with cubs COY near snow den at Wapusk National Park, Hudson Bay, Churchill area, Manitoba, Northern Canada

1350-216 - Wary young red fox kit ( Vulpes vulpes ) napping near boreal den near Churchill Manitoba Hudson Bay Northern Sub-arctic Canada

1350-193 - Mother Polar Bear (ursus maritimus) with cubs COY near snow den at Wapusk National Park, Hudson Bay, Churchill area, Manitoba, Northern Canada

1350-194 - Mother Polar Bear (ursus maritimus) with cubs COY near snow den at Wapusk National Park, Hudson Bay, Churchill area, Manitoba, Northern Canada

1350-189 - Mother Polar Bear (ursus maritimus) with cubs COY near snow den at Wapusk National Park, Hudson Bay, Churchill area, Manitoba, Northern Canada

1350-2029 - An Arctic Ground Squirrel (Uroticellus parryii) baby peeks out of it's den. Yukon Territory, Canada

1350-187 - Mother Polar Bear (ursus maritimus) with cubs COY near snow den at Wapusk National Park, Hudson Bay, Churchill area, Manitoba, Northern Canada

846-1245 - Christmas Market, Unter Den Linden, Berlin, Germany, Europe

832-390677 - Puffin (Fratercula arctica), breeding den, Hornoya, Varanger, Norway, Europe

1184-4618 - View from Bear's Den Tafone Rock over the Taiga, Lapland, Inari, Finland, Europe

1112-5509 - Adult spotted hyena (Crocuta crocuta) in its den, Serengeti National Park, Tanzania, East Africa, Africa

1112-5394 - A pack of banded mongooses (Mungos mungo), in their den site in Tarangire National Park, Tanzania, East Africa, Africa

1112-5395 - A pack of banded mongooses (Mungos mungo), near their den site in Tarangire National Park, Tanzania, East Africa, Africa

1112-5392 - A pack of banded mongooses (Mungos mungo), in their den site in Tarangire National Park, Tanzania, East Africa, Africa

1112-5273 - Adult Andean fox (Lycalopex culpaeus) near its den in the Andean Central Volcanic Zone, Antofagasta Region, Chile, South America

1112-5272 - Adult Andean fox (Lycalopex culpaeus) near its den in the Andean Central Volcanic Zone, Antofagasta Region, Chile, South America

1174-8888 - A pack of Wild Dog puppies Lycaonﾠpictus outside their den, Sabi Sands, South Africa

762-81 - Pier at Scheveningen, near Den Haag (The Hague), Holland (The Netherlands), Europe

1174-8798 - Hyena cubs, Crocuta crocuta, walk out of their den site, ears perked up in the sunlight, Sabi Sands, Greater Kruger National Park, South Africa

1112-4931 - An adult African wild dog (Lycaon pictus), at a den site in the Save Valley Conservancy, Zimbabwe, Africa

1116-47576 - Red fox (Vulpes vulpes) prowls the Campbell Creek area in winter looking for rodents and other food. Fox is shown looking out from a hole that may be a future den, South-central Alaska, Anchorage, Alaska, United States of America

1112-4443 - Adult tree squirrel (Paraxerus cepapi), in Chobe National Park, Botswana, Africa

1112-4417 - Dwarf mongoose (Helogale parvula), den inside a termite mound in the Okavango Delta, Botswana, Africa

762-873 - Common Warthog (Phacochoerus africanus), emerging from its den, Bushman Plains, Okavango Delta, Botswana, Africa

860-288067 - Red fox (Vulpes vulpes) near the , England

860-288212 - Red fox (Vulpes vulpes) vixen and playing cubs, England

860-288068 - Red fox (Vulpes vulpes) vixen and cub near the earth, England

1112-4253 - Red fox kit (Vulpes vulpes), about two months old near its den at Leigh Lake, Grand Teton National Park, Wyoming, United States of America, North America

1112-4252 - Red fox kit (Vulpes vulpes), about two months old near its den at Leigh Lake, Grand Teton National Park, Wyoming, United States of America, North America

1112-4251 - Adult mother red fox (Vulpes vulpes), near her den at Leigh Lake, Grand Teton National Park, Wyoming, United States of America, North America

860-287579 - Polar bear (Ursus maritimus), 3 month old cubs in their den. Churchill, MB, Canada

698-3408 - Bruges Belfry and tourist boats on Den Dijver Bruges Canal, Bruges, UNESCO World Heritage Site, West Flanders, Belgium, Europe

698-3395 - Boat tours on The Den Dijver Bruges canal in front of the Hotel De Orangerie in Bruges, Belgium, Europe

698-3407 - Rozenhoedkai Quay, Bruges Belfry and tourist boats on Den Dijver Bruges Canal, UNESCO World Heritage Site, Bruges, West Flanders, Belgium, Europe

849-1894 - Autumn color around Daikoku-den Hall in Nara, Japan, Asia

832-383703 - Marmot (Marmota) sits at its den, Berchtesgaden Alps, Bavaria, Germany, Europe

1174-5079 - Two spotted hyena cubs, Crocuta crocuta, sit and stand outside their den, looking away, Londolozi Game Reserve, Sabi Sands, Greater Kruger National Park, South Africa

1174-5119 - Two spotted hyena cubs, Crocuta crocuta, one sitting, one standing, looking away, at den site, black coats, Londolozi Game Reserve, Sabi Sands, Greater Kruger National Park, South Africa

1116-41972 - Polar bear (ursus maritimus) sticking it's head out of a den at wapusk national park, Manitoba canada

1292-1454 - St. John Cathedral, Den Bosch, The Netherlands, Europe

1292-1453 - St. John Cathedral, Den Bosch, The Netherlands, Europe

1292-1455 - St. John Cathedral, Den Bosch, The Netherlands, Europe

1292-1449 - City hall, Den Bosch, The Netherlands, Europe

1292-1446 - Markt Square, Den Bosch, The Netherlands, Europe

1292-1457 - The Noordbrabants Museum, Den Bosch, The Netherlands, Europe

1292-1452 - The canal along Handelskade street, Den Bosch, The Netherlands, Europe

1292-1451 - The canal along Handelskade street, Den Bosch, The Netherlands, Europe

1292-1456 - The Jheronimus Bosch Art Center, Den Bosch, The Netherlands, Europe

1292-1450 - The canal along Handelskade street, Den Bosch, The Netherlands, Europe

1292-1448 - Lepelstraat, Den Bosch, The Netherlands, Europe

1292-1447 - Vughterstraat, Den Bosch, The Netherlands, Europe

857-95846 - Aerial view of Wadden Sea, city and road across sea, Den Helder, Netherlands

832-381506 - Bay Cala Mondragó with sailing yachts, beach Caló d'en Garrot, natural park of Mondragó, Mallorca, Majorca, Balearic Islands, Mediterranean Sea, Spain, Europe

832-381505 - Sailing yachts in the Cala Mondragó bay, beach of Caló d'en Garrot, natural park of Mondragó, Mallorca, Majorca, Balearic Islands, Mediterranean Sea, Spain, Europe

802-543 - Sadhu's den, Kathmandu, Nepal, Asia

832-380423 - Small lighthouse at harbor entrance, sunset, Scheveningen, The Hague, Holland, The Netherlands, Europe

832-380424 - Small lighthouse at harbor entrance, sunset, Scheveningen, The Hague, Holland, The Netherlands, Europe

832-379393 - Banded Mongoose (Mungos mungo), mongoose family with pup, at the den, Kruger National Park, South Africa, Africa

832-379379 - Young Red Fox (Vulpes vulpes), Canton of Basel, Switzerland, Europe

832-379652 - Young raccoon (Procyon lotor) looking out of a tree hollow, Hesse, Germany, Europe

832-379510 - Young spotted hyena (Crocuta crocuta) looking out of the burrow in the morning light, Maasai Mara National Reserve, Narok County, Kenya, Africa

832-379394 - Banded Mongoose (Mungos mungo), mongoose familiy with pups, at the den, Kruger National Park, South Africa, Africa

743-1705 - Meerkats (Suricata suricatta) at den, Kgalagadi Transfrontier Park, South Africa, Africa

743-1653 - Ground squirrels (Xerus inauris), Kgalagadi Transfrontier Park, Northern Cape, South Africa, Africa

743-1650 - Ground squirrels (Xerus inauris) at den, Kgalagadi Transfrontier Park, Northern Cape, South Africa, Africa

743-1651 - Ground squirrels (Xerus inauris) suckling, Kgalagadi Transfrontier Park, Northern Cape, South Africa, Africa

743-1652 - Ground squirrels (Xerus inauris), Kgalagadi Transfrontier Park, Northern Cape, South Africa, Africa

1207-119 - Statue of Joost Van Den Vondel in Vondelpark, Amsterdam, Netherlands, Europe

1207-123 - Statue of Joost Van Den Vondel in Vondelpark, Amsterdam, Netherlands, Europe

857-94465 - Robert Hahn reads in his tent as Ethan Welty walks past with his headlamp on at their camp on the Nam Ou River in Phou Den Din National Protected Area, Laos. The wooden tripod was built by hunters and fishermen who regularly camp and poach wild game within park boundaries despite (or perhaps without knowledge) that this is technically illegal.