A New York-based non-profit organization dedicated to preserving and protecting endangered ancient and historic sites around the world. Photographs and descriptions of 100 most endangered sites.

UNESCO explains the choice of certain buildings and sites as World Heritage. List with pictures and information available on each.

Images from space of great archaeological sites like Angkor or Giza, with description, from a joint mission of the United States, German and Italian space agencies.

Over a thousand images of archaeological sites in the Americas, Australia, the British Isles, Continental Europe and Polynesia taken by Clive Ruggles of Leicester University.