There are many lost ancient cities in the world. Some of them are really amazing. Now I will introduce several of them to you.
Petra is located on the slope of Mount Hor, Jordan. Petra is famous for its stone sculpture on the rocks. This historical site was found by a Switzerland explorer in 1812 and opened to the public. It was once described as a rosy city with long history in a sonnet written by John William Burgon - a winner of Newdigate prize. Actually, Burgon had never been to Petra. He once worked as a tour guide and protected European people to visit there.
This site was listed as a world heritage by UNESCO in 1985 when it was described as one of the most precious possession of human cultural heritage.
Petra was surrounded by big rocks and never-ending streams. It was once a military fortress. During the reign of Roman Empire, Petra went down quickly mainly because the marine trade route had been changed. In 363, an earthquake destroyed architecture and the water resources operation system people lived with. Petra aroused people's curiosity in middle ages.