Airdrie Public Observatory was created in 1896.
Modra Observatory was created in 1988.
Stellafane Observatory was created in 1924.
Manila Observatory was created in 1865.
Madras Observatory was created in 1786.
Radcliffe Observatory Quarter was created in 2009.
Fox Park Public Observatory was created in 1999.
Airdrie Transit was created in 1980.
Airdrie railway station was created in 1862.
Airdrie United F.C. was created in 2002.
Airdrie Savings Bank was created in 1835.
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.