Image of Los Millares prehistoric settlement, Almeria, Andalusia, Spain, Europe

Silbury Hill neolithic site, the largest prehistoric manmade structure in Europe, Wiltshire, England, United Kingdom, Europe

Neolithic excavations of Choirokoitia, UNESCO World Heritage Site, Cyprus, Europe

Neolithic archaeological site of Karahan Tepe, circular stone structure with T Shape pillars, Sanliurfa, Turkey, Asia Minor, Asia

South section of Torre d'en Galmes, a Talayotic site on the island of Menorca, Balearic Islands, Spain, Mediterranean, Europe

Large circular structures with massive stone pillars, Gobekli Tepe Neolithic archaeological site dating from 10 millennium BC, UNESCO World Heritage Site, Potbelly Hill, Sanliurfa, Turkey, Asia Minor, Asia

Neolithic archaeological site of Karahan Tepe, circular stone structure with T Shape pillars, Sanliurfa, Turkey, Asia Minor, Asia

Poulnabrone Portal Dolmen megalythic burial tomb, 3800BC, in The Burren glaciated landscape, County Clare, Ireland

Stonehenge, Neolithic cult site, Neolithic stone circle, UNESCO World Heritage Site Stonehenge, Avebury and Associated Sites, Wiltshire, England, United Kingdom, Europe

The Seven Stone Homes Sieben Steinhaeuser a group of dolmes in the Lueneburg Heath in the Bergen-Hohne NATO training area Lower saxony Germany

The Seven Stone Homes Sieben Steinhaeuser a group of dolmes in the Lueneburg Heath in the Bergen-Hohne NATO training area Lower saxony Germany

Silhouette of Stonehenge against evening sky with setting sun, Salisbury, England, Great Britain

Jarlshof, an archaeological site on the Shetland Islands, which was inhabited from neolithic times to the middle ages.Wheelhouses dating back to the Iron Age. Europe, Great Britain, Scotland, Northern Isles, Shetland, May

Jarlshof, an archaeological site on the Shetland Islands, which was inhabited from neolithic times to the middle ages.Wheelhouses dating back to the Iron Age. Europe, Great Britain, Scotland, Northern Isles, Shetland, May