Chapel of Bones, Royal Church of St. Francis, Evora, UNESCO World Heritage Site, Portugal, Europe

Christ Church cathedral green and houses, seen through whale bone arch, Stanley, East Falkland, Falkland Islands, South America

Astronomical clock, Town Hall, Old Town Square, Old Town, Prague, Czech Republic, Europe

Chapel of Bones, Royal Church of St. Francis, Evora, UNESCO World Heritage Site, Portugal, Europe

Chapel of Bones, Royal Church of St. Francis, Evora, UNESCO World Heritage Site, Portugal, Europe

Old Skulls hidden in Rock Islands near Malwawa, Triton Bay, West Papua, Indonesia

Old Skulls hidden in Rock Islands near Malwawa, Triton Bay, West Papua, Indonesia

Old whale bones in the beach near the Henryk Arctowski Polish Antarctic Station, King George Island, South Shetland Islands, Antarctica, Polar Regions

Old Skulls hidden in Rock Islands near Malwawa, Triton Bay, West Papua, Indonesia

Old airport in Tomtor one of the cold spots on earth, Road of Bones, Sakha Republic (Yakutia), Russia, Eurasia

Old whale skeleton, Jougla Point near Port Lockroy, Antarctic Peninsula, Antarctica, Polar Regions

Old whaling station, Grytviken, South Georgia, South Atlantic

Chapel of Bones, interior, Carmo Church, Faro, Algarve, Portugal, Europe

Cave of skulls and bones, Opdas Cave Mass Burial, 500-1000 years old, Kabayan Town, The Cordillera Mountains, Benguet Province, Luzon, Philippines, Southeast Asia, Asia

A hungry black mongrel dog scavenging among a pile of old bones at Nalu, Rajasthan, India.

Old whale skeleton, Jougla Point near Port Lockroy, Antarctic Peninsula, Antarctica, Polar Regions

Old whale skeleton, Jougla Point near Port Lockroy, Antarctic Peninsula, Antarctica, Polar Regions

Old whale skeleton, Jougla Point near Port Lockroy, Antarctic Peninsula, Antarctica, Polar Regions

A view of the abandoned bowhead whaling station with bones strewn about in Hornsund (Horn Sound) on the southwestern side of Spitsbergen Island in the Svalbard Archipelago, Barents Sea, Norway.

Whalebone Alley, female tourist standing between bow head whale rib bones, Itygran Island (Bering Sea) Russia, Asia. MORE INFO: Whale Bone Alley was discovered by Soviet archaeologists in 1976, but has remained untouched since and little is known of this place. There is a long double line of bowhead whale bones -- jaws and ribs -- running parallel along the shore for hundreds of yards. Many of the bones, especially the enormous jaw bones, are still standing, propped up by lichen-covered rocks. The location is thought to have been used in about 1300 as a ceremonial site, for a men's secret society or feasting site.

Whalebone Alley, female tourist sitting on bowhead whale bone, Itygran Island (Bering Sea) Russia, Asia. MORE INFO: Whale Bone Alley was discovered by Soviet archaeologists in 1976, but has remained untouched since and little is known of this place. There is a long double line of bowhead whale bones -- jaws and ribs -- running parallel along the shore for hundreds of yards. Many of the bones, especially the enormous jaw bones, are still standing, propped up by lichen-covered rocks. The location is thought to have been used in about 1300 as a ceremonial site, for a men's secret society or feasting site.

Whalebone Alley, Bowhead whale bones, Itygran Island (Bering Sea) Russia, Asia. MORE INFO: Whale Bone Alley was discovered by Soviet archaeologists in 1976, but has remained untouched since and little is known of this place. There is a long double line of bowhead whale bones -- jaws and ribs -- running parallel along the shore for hundreds of yards. Many of the bones, especially the enormous jaw bones, are still standing, propped up by lichen-covered rocks. The location is thought to have been used in about 1300 as a ceremonial site, for a men's secret society or feasting site.

Whalebone Alley, Bowhead whale bone, Itygran Island (Bering Sea) Russia, Asia. MORE INFO: Whale Bone Alley was discovered by Soviet archaeologists in 1976, but has remained untouched since and little is known of this place. There is a long double line of bowhead whale bones -- jaws and ribs -- running parallel along the shore for hundreds of yards. Many of the bones, especially the enormous jaw bones, are still standing, propped up by lichen-covered rocks. The location is thought to have been used in about 1300 as a ceremonial site, for a men's secret society or feasting site.

Whalebone Alley, female tourist standing around still intact extremly old inuit elder grave, skeleton still present. Itygran Island (Bering Sea) Russia, Asia. MORE INFO: Whale Bone Alley was discovered by Soviet archaeologists in 1976, but has remained untouched since and little is known of this place. There is a long double line of bowhead whale bones -- jaws and ribs -- running parallel along the shore for hundreds of yards. Many of the bones, especially the enormous jaw bones, are still standing, propped up by lichen-covered rocks. The location is thought to have been used in about 1300 as a ceremonial site, for a men's secret society or feasting site.

Upper and lower jaw bones (+ one rib) of a blue whale (Balaenoptera musculus) at an old whaling station. BBC Broadcaster John Craven for scale. Snaefellsness Peninsular, Iceland.

Beluga grave yard at an old whaling station on Spitsbergen. Svalbard.

A view of the abandoned bowhead whaling station with bones strewn about in Hornsund (Horn Sound) on the southwestern side of Spitsbergen Island in the Svalbard Archipelago, Barents Sea, Norway.

A view of the abandoned bowhead whaling station with bones strewn about in Hornsund (Horn Sound) on the southwestern side of Spitsbergen Island in the Svalbard Archipelago, Barents Sea, Norway.

Upper and lower jaw bones (+ one rib) of a blue whale (Balaenoptera musculus) at an old whaling station. Snaefellsness Peninsular, Iceland.

A view of the abandoned bowhead whaling station with bones strewn about in Hornsund (Horn Sound) on the southwestern side of Spitsbergen Island in the Svalbard Archipelago, Barents Sea, Norway.

A whale bone arch and old vats for rendering down whale blubber in Ilulissat, Greenland, Polar Regions

A view of the abandoned bowhead whaling station with bones strewn about in Hornsund (Horn Sound) on the southwestern side of Spitsbergen Island in the Svalbard Archipelago, Barents Sea, Norway.

A view of the abandoned bowhead whaling station with bones strewn about in Hornsund (Horn Sound) on the southwestern side of Spitsbergen Island in the Svalbard Archipelago, Barents Sea, Norway.

A view of the abandoned bowhead whaling station with bones strewn about in Hornsund (Horn Sound) on the southwestern side of Spitsbergen Island in the Svalbard Archipelago, Barents Sea, Norway.

A view of the abandoned bowhead whaling station with bones strewn about in Hornsund (Horn Sound) on the southwestern side of Spitsbergen Island in the Svalbard Archipelago, Barents Sea, Norway.

Doctors examining x-ray of skull and jaw on digital tablet

Historic Inuit house from the Thule culture made out of whale bones, Resolute Bay, Cornwallis Island, Northwest Passage, Nunavut, Canada, Arctic

Historic Inuit house from the Thule culture made out of whale bones, Resolute Bay, Cornwallis Island, Northwest Passage, Nunavut, Canada, Arctic

Ossuary, skulls and bones of the explosion victims, Arkadi Monastery, Moni Arkadi, National Monument, Crete, Greece, Europe

Historic artifacts, bones, tools, Chilkoot Trail, Pass, Klondike Gold Rush National Historical Park, Alaska, USA

Human skeleton in an open grave

Museum guide with a whalebone, Fyffe House, whalers' house from 1842, Kaikoura Peninsula, South Island, New Zealand

Piece of appetizing pork steak on the bone with vegetables in vintage style

Piece of appetizing pork steak on the bone with vegetables in vintage style

Woman holding human skull forest

Pile dirty plates leftovers copy space

Townscape of Monschau on the Rur river, Eifel, North Rhine-Westphalia, Germany, Europa

Old horse cart, Cherkekhskiy regional museum, Road of Bones, Sakha Republic, Yakutia, Russia, Europe

Mono, close-up portrait of a Cape Buffalo (Syncerus caffer) standing, eyeing camera in Segera, Segera, Laikipia, Kenya

Cow Skull, Taos, New Mexico, United States of America

View of skeleton in Nubia Museum at Aswan, Egypt