The Beijing Ancient Observatory, which in Chinese character’s reads as: 北京古观象台 is a pretelescopic observatory located in Beijing, China. In traditional Chinese it reads as: 北京古觀象台 and in Chinese pinyin it is pronounced as: Běijīng Gǔ Guānxiàngtái. The revolutionary tools used within this ancient observatory were built in 1442 during the Ming Dynasty, and later amended during the Qing dynasty.

As one of the oldest observatories in the world, the Beijing Ancient Observatory grounds cover an area of 10,000 square meters. The observatory itself is located on a 40 by 40 wide meter and on a 15 meter tall brick tower, which is an extant portion of the old Ming Dynasty era city wall that once encircled Beijing. Several of the bronze astronomical instruments are on the platform, and other armillary spheres, sundials, and other instruments are located nearby at ground level. It is operated as a museum and works in affiliation with the Beijing Planetarium.

As one of the oldest observatories in the world, the Beijing Ancient Observatory grounds cover an area of 10,000 square meters. The observatory itself is located on a 40 by 40 wide meter on a 15 meter tall brick tower, an extant portion of the old Ming Dynasty era city wall that once encircled Beijing. Several of the bronze astronomical instruments are on the platform, and other armillary spheres, sundials, and other instruments are located nearby at ground level. It is operated as a museum in affiliation with the Beijing Planetarium.