An observatory is a scientific building for visual study of natural phenomena either in outer space or on earth.
Those are the observatories.
No. Mt Wilson observatory is in the San Gabriel Mountains and the Griffith observatory is in the Hollywood Hills. www.mwoa.org
The observatory is in Green Bank.
Erbil Observatory was created in 1973.
Steward Observatory was created in 1916.
Bosscha Observatory was created in 1923.
Mead Observatory was created in 2001.
Goodsell Observatory was created in 1886.
Cloudcroft Observatory was created in 1962.
Foothill Observatory was created in 1965.
Union Observatory was created in 1903.
Sherwood Observatory was created in 1970.