Guy Edwardes / Pentre Ifan, a Neolithic burial chamber, Nevern, Pembrokeshire, Wales, UK. November 2008

Guy Edwardes / Lanyon Quoit ancient burial chamber, Madron, Cornwall, England, UK. September 2015.

Nick Turner / Close up of Stonehenge stones at night, Wiltshire, England, Uk, September 2009.

Nick Upton / Neolithic Dolmen de Fontanaccia portal tomb ("The Devil's Forge") erected around 6000 years ago. Cauria, Corsica, France, May 2010.

Inaki Relanzon / Dolmen d'Eyna at night, with a long exposure capturing star trails. Eyne, Pyrenees, France, September 2010.

Juan Manuel Borrero / Ruins of ancient Revash buildings / burial sites, from the period of Chachapoyas culture, Amazonas Department, Peru, October 2009

Wild Wonders of Europe / Hermansen / Poulnabrone Dolmen, a stoneage portal tomb, The Burren, County Clare, Republic of Ireland, June 2009

Igor Shpilenok / Ancient stones indicating burial grounds from the Karasouk civilization, Khakassky, Russia.

Juan Carlos Munoz / Cnoc Raithni / Raithnighe national monument, burial mound surrounded by drystone wall. Inisheer, Aran Islands, County Galway, Republic of Ireland. May 2011.

Enrique Lopez-Tapia / Skull, coins and bones in burial area in cave, Toraja cemetery. The Toraja culture of West and South Sulawesi revolves around death with funeral ceremonies an important part of daily life. Indonesia....

Will Watson / Maen Madoc - an early Christian burial marker stone dating from the 5 or 6th Century AD, inscribed in Latin: DERVAC(IVS) FILIVS IVSTI (H)IC IACIT - "Of Dervacus, Son of Justus. He lies here". Brecon B...

Ashley Cooper / Men an Tol stone near St Just in Cornwall, UK. This late Neolithic monument is thuoght to have been part of a now disappeared stone circle or an entrance to an old burial chamber

Igor Shpilenok / Ancient burial grounds, Daurian Nature Reserve. Daurian Steppes UNESCO World Heritage Site, Zabaykalsky Krai, Siberia, Russia, June 2016.

Graham Eaton / Carreg Samson, a 5000 year old Neolithic dolmen or burial chamber, near Abercastle, Pembrokeshire, Wales, UK, June

Graham Eaton / Pentre Ifan a Neolithic burial chamber, ported dolmen, chambered tomb, Aberteifi, Pembrokeshire, Wales, UK, June

Graham Eaton / Pentre Ifan a Neolithic burial chamber, ported dolmen, chambered tomb, Aberteifi, Pembrokeshire, Wales, UK, June

Phil Savoie / St Lythans Burial chamber, a 6000 year-old Neolithic chamber with a 35 ton capstone at dawn, Vale of Glamorgan, Wales, UK, February

Phil Savoie / Herringbone stonewall at Tinkinswood Neolithic Burial Chamber from 6000 years ago. Wales, UK. February.

David Pattyn / Mask and figure from an ancient culture in traditional burial site, cave in Tsingy rocks, Anjajavy Private Reserve, north west Madagascar, August 2016.

David Pattyn / Human skulls and bones in wooden troughs, traditional burial site from an ancient culture within cave in Tsingy rocks, Anjajavy Private Reserve, north west Madagascar, August 2016.

David Pattyn / Human skulls and bones in wooden troughs, traditional burial site from an ancient culture within cave in Tsingy rocks, Anjajavy Private Reserve, north west Madagascar, August 2016.

Juan Carlos Munoz / Kenmare stone circle, Kenmare, Iveragh Peninsula, County Kerry, Republic of Ireland. September 2015.

Pascal Kobeh / A skull in the engine room of the wreck of the Yamagiri Maru, a passenger cargo boat used as a naval military auxiliary. Japan has made recovery efforts and has removed many bodies and returned them...

Cyril Ruoso / Human skull exposed where a pre-Inca burial site has been pillaged, Poroma Valley, Peru 2013

Guy Edwardes / Lanyon Quoit ancient burial chamber, Madron, Cornwall, England, UK. March 2010.

Guy Edwardes / Sunrise casting rays through stones of Lanyon Quoit ancient burial chamber, Madron, Cornwall, England, UK. February 2006.

Christophe Courteau / La Roche-aux-Fees (Fairies' rock) dolmen / tomb. Esse, Ille-et-Vilaine, Brittany, France, December 2013.

Steve O. Taylor (GHF) / Bandiagara burial chambers. Mali, 2005-2006.

Steve O. Taylor (GHF) / Dogon burial site. Bandiagara, Mali, 2005-2006.

Steve O. Taylor (GHF) / Interior of Dogon burial chamber. Bandiagara, Mali, 2005-2006.

Steve O. Taylor (GHF) / Dogon burial chamber. Bandiagara, Mali, 2005-2006.

Bryan and Cherry Alexander / At the end of the Chukchi Festival of Young Reindeer', Rita Votgyrgina, collects small stones to place on burial mound (Melgynvyn) where the powdered bones of sacrificed reindeer are buried, close to...

David Tipling / Frieze depicting a Cockerel from a tomb at Xanthos in Lycia, Turkey from between 470 and 460 BC. It was a Lycian tradition to sacrifice cockerels and make other sacrificial offerings to the deceased,...

Will Watson / Arthur's Stone, a Neolithic chambered tomb dating between 3700 and 2700 BC, Golden Valley, Herefordshire, England, May 2013.

Adrian Davies / Lichens including Xanthoria parietina and Ochrolechia parella on tombstones in village churchyard. Slapton, Devon, England, UK, July 2013.

Enrique Lopez-Tapia / Grave covered with red rocks, near Old Whaling Station. Deception Island. Antarctica

Enrique Lopez-Tapia / Graveyard with rubble covered graves, old whaling station. Deception Island, Antarctica.

Paul Harcourt Davies / Etruscan rock tombs at Norchia, near Vetralla, Lazio dating from 2nd - 4th century BC. Norchia, near Viterbo, Lazio, Italy, November 2011

Pat Tuson / 'Innvertebrate' the Boutique Bug Hotel or Insect House situated amongst gravestones, Bunhill Fields Burial Ground or Cemetery with flats behind and people on balcony, London Borough of Islingt...

Pat Tuson / 'Innvertebrate', the Boutique Bug Hotel or Insect House situated amongst gravestones, Bunhill Fields Burial Ground or Cemetery, London Borough of Islington, London, England, UK

Pat Tuson / 'Innvertebrate', the Boutique Bug Hotel or Insect House situated amongst gravestones, Bunhill Fields Burial Ground or Cemetery, London Borough of Islington, London, England, UK

Niall Benvie / 2020VISION / People holding signs spelling CO2, representing carbon capture for peatland burial, next todigging equipment. Sutherland, Scotland, July 2012.

Niall Benvie / 2020VISION / People holding signs spelling CO2, representing carbon capture for peatland burial. Sutherland, Scotland, July 2012.

Niall Benvie / 2020VISION / People holding signs spelling CO2, representing carbon capture for peatland burial. Sutherland, Scotland, July 2012.

Jim Brandenburg / Dolmen tombs at dusk, Carnac, Brittany, France

Daniel Heuclin / Mummies from Anga tribe, Papua New Guinea

Nick Turner / Neolithic chambered long barrow, Belas Knap Long Barrow, Winchcombe, Gloucestershire, UK, June 2009.

Nick Turner / Neolithic chambered long barrow, Belas Knap Long Barrow, Winchcombe, Gloucestershire, UK, June 2009.

Nick Turner / Neolithic chambered long barrow, Belas Knap Long Barrow, Winchcombe, Gloucestershire, UK, June 2009.

Nick Turner / Neolithic chambered long barrow, Belas Knap Long Barrow, Winchcombe, Gloucestershire, UK, June 2009.

Peter Lewis / Stones of Pentre Ifan, a megalithic Burial Chamber / Cromleck / Quiot at sunset with sun reflected in Cardiganshire Bay in the background, nr Newport, Pembrokeshire, Wales, UK, June 2010

Peter Lewis / Stones of Pentre Ifan, a megalithic Burial Chamber / Cromleck / Quiot at dawn, nr Newport, Pembrokeshire, Wales, UK, June 2010

Peter Lewis / Carreg Sampson, a megalithic Burial Chamber / Cromleck / Quiot, nr Abercastle, Pembrokeshire, Wales, UK, June 2010

Peter Lewis / Carreg Coetan, a megalithic Burial Chamber / Cromleck / Quiot in a housing estate in Newport, Pembrokeshire, Wales, UK, June 2010

Bryan and Cherry Alexander / Ngamteydu (flowering hill), a sacred site for the Forest Nenets of the Purovsky region of the Yamal. Western Siberia, Russia, February 2009.

Pete Oxford / Mopoyo burial site. Here the bodies which are bound in palm leaves are placed under a granite overhang or shallow cave. Orinoco River, Apure Province, Venezuela, February 2009.

Pete Oxford / Mopoyo burial site. Here the bodies which are bound in palm leaves are placed under a granite overhang or shallow cave. Orinoco River, Apure Province, Venezuela, February 2009.

Nick Upton / Neolithic Dolmen de Fontanaccia portal tomb ("The Devil's Forge") erected around 6000 years ago. Cauria, Corsica, France, May 2010.

Nick Upton / Neolithic Dolmen de Fontanaccia portal tomb ("The Devil's Forge") erected around 6000 years ago. Cauria, Corsica, France, May 2010.

Nick Upton / Neolithic Dolmen de Fontanaccia portal tomb ("The Devil's Forge") erected around 6000 years ago. Cauria, Corsica, France, May 2010.

Philippe Clement / Prehistoric burial cairns of Balnuaran of Clava / Clava Cairns, Inverness-shire, Highlands, Scotland, UK, May 2010

Juan Manuel Borrero / Archaeological site of the Señor de Sipán, showing a reconstruction of the tomb. Sitio Huaca Rajada-Sipán, Lambayeque. Peru November 2009

Juan Manuel Borrero / Ruins of ancient Revash buildings / burial sites, from the period of Chachapoyas culture, Amazonas Department, Peru, October 2009

Pete Oxford / South American River Turtle (Podocnemis expansa) researcher taking eggs for re-burial, part of reintroduction to the wild program, Playita Beach, Orinoco River, Apure, Venezuela

Michele Westmorland / Gravestone and flowers, Beachside cemetery in Blue Hills, Provodenciales, Turks and Caicos, Caribbean. June 2007.

Michele Westmorland / Beachside cemetery in Blue Hills, Provodenciales, Turks and Caicos, Caribbean. June 2007.

Michele Westmorland / Church and graveyard, The Bottom, Saba Island in the Dutch Caribbean, Netherlands Antilles, West Indies. August 2006.

Angelo Gandolfi / Aerial view of the Valley of the Lente, which is dotted with ancient and culturally significant Etruscan tombs. Sorano, Tuscany "Maremma", Italy. April 2009

Angelo Gandolfi / Interior of an Etruscan tomb of "Colombai". Some of the tombs were later turned into dovecotes, to house domestic pigeons. Sovana, Tuscany "Maremma", Italy. March 2009

Angelo Gandolfi / An Etruscan tomb called "Sirena" (the Siren)Sovana, Tuscany "Maremma", Italy. March 2009

Angelo Gandolfi / Interior of an Etruscan Ildebranda tomb. Sovana, Tuscany "Maremma", Italy. March 2009

Angelo Gandolfi / View of the Etruscan tombs at Poggio Prisca cliff. Sovana, Tuscany "Maremma", Italy. December 2008

Peter Lewis / 'Devils Den' in winter snow. The only dolmen / burial chamber in Wiltshire, England, UK, February 2009.

Peter Lewis / 'Devils Den' in winter snow. The only dolmen / burial chamber in Wiltshire, England, UK, February 2009.

Merryn Thomas / Buzza Hill Burial Chamber (later Neolithic – early Bronze Age) and view over Hugh Town. St Mary's, Isles of Scilly, December 2009.

Merryn Thomas / Buzza Hill Burial Chamber (later Neolithic – early Bronze Age) and view over Hugh Town. St Mary's, Isles of Scilly, December 2009.

Wild Wonders of Europe / Hermansen / Poulnabrone Dolmen, a stone-age portal tomb, The Burren, County Clare, Republic of Ireland, June 2009

Wild Wonders of Europe / Hermansen / Poulnabrone Dolmen, a stoneage portal tomb, The Burren, County Clare, Republic of Ireland, June 2009

Angelo Gandolfi / Dolmen de Axeitos stone burial chamber, Galicia, Spain. July 2008.

Merryn Thomas / Poulnabrone Dolmen, a Neolithic portal tomb on the Burren (large carboniferous limestone pavement), County Clare, Republic of Ireland, May 2009.

Merryn Thomas / Poulnabrone Dolmen, a Neolithic portal tomb on the Burren (large carboniferous limestone pavement), County Clare, Republic of Ireland, May 2009.

Scott Leslie / Native American burial mound from the Maritime Archaic, Labrador, Canada

Mark Brownlow / Human skulls of tribesmen at burial site, Papua New Guinea, August 2007

Mark Brownlow / Human Skulls of tribesmen at burial site, Papua New Guinea, August 2007

Eric Baccega / Le Dehus burial chamber and Neolithic tomb (6500 BC), Guernsey, Channel Islands. May 2009.

Eric Baccega / Les Fouaillages L'Ancresse burial chamber and Neolithic tomb (6500 BC), Guernsey, Channel Islands. May 2009.

Inaki Relanzon / Tomb art, skulls and horns of zebu cattle used to decorate burial chambers in South Madagascar

Inaki Relanzon / Tomb art, skulls and horns of zebu cattle used to decorate burial chambers in South Madagascar

Peter Lewis / Trethevy Quiot, a Neolithic burial chamber, Bodmin Moor, Cornwall,UK

Peter Lewis / Trethevy Quiot, a Neolithic burial chamber, Bodmin Moor, Cornwall, UK

Peter Lewis / The Chun Quiot, a Neolithic burial chamber dating from 3500 BC, on open moorland, West Cornwall

Peter Lewis / The Chun Quiot, a Neolithic burial chamber dating from 3500 BC, on open moorland, West Cornwall

Gertrud & Helmut Denzau / Old burial sites, Tikse, Ladakh, India

Philippe Clement / The dolmen of the Merchants' Table / Table des Marchands, Locmariaquer, Brittany, France. May 2008.

Philippe Clement / Dolmen and standing stones in the Kermario alignment at Carnac, Brittany, France. May 2008.

Philippe Clement / Dolmen and standing stones in the Kermario alignment at Carnac, Brittany, France. May 2008.