7 Amazing Underwater Structureshttp://bit.ly/1wXzSGx
Photo shows the City of Shi Cheng.
Discovered in 2001 under a man-made lake in Chun’an County, Zhejiang Province in China, at the foot of Wu Shi Mountain (Five Lion Mountain), is a city called Shi Cheng, or Lion City. Submerged in 1959, the city is dated to the Eastern Han Dynasty of A.D. 25–200. The city itself is over 1,800 years old and spans the length of 62 football fields. It was once a political and economic hub, and unlike other cities of its time, it boasts five gates instead of four. Sitting at a depth of 26 to 40 meters makes Shi Cheng a challenge for divers to explore and fully document.
Read about other cities at the link.