Madain Saleh, Saudi Arabia Dating back to the second century BC, the Nabataean archaeological site, also known as Madain Saleh, has long been hidden from foreign visitors in this ultra-conservative kingdom that rarely opens up to tourists. But now the largest and best preserved site of the Nabataean civilisation south of Petra in Jordan is the first Saudi archaeological site to be inscribed on UNESCO’s World Heritage List Archaeology in the News | The ASOR Blog
First pictures from inside the 'crater at the end of the world' - upper crater wall. The first scientists have just returned from the crater on the Yamal Peninsula of Russia and are now using satellite photos to fix when it formed. The crater is from 50 to 70 meters deep and about 30 meters in diameter - though somewhat oval.