What it is: An ancient stone circle in the Egyptian desert that may be the oldest known astronomical observatory Where it is from: An desert area of southern Egypt, about 175 miles (280 kilometers ...

Long before the Incas came to power in Peru and began to celebrate their sun god, a little-known civilization was building the oldest known astronomical observatory in the Americas. While not as ...

The art deco building dates back to 1912 and is considered one of the world's oldest observatories. Visitors can also enjoy concerts and other musical shows in the enormous domed hall. The high ...

Beijing Ancient Observatory is located in the southwest side of Jianguomen crossroad at Dongcheng District. It is a special topic site museum of nature science displaying Chinese ancient ...