Cointe Observatory

Liège Cathedral, otherwise St. Paul's Cathedral, Liège, in Liège, Be

The Fort de la Chartreuse, which dominates the Amercœur neighborhood

The Curtius Museum (Musée Curtius) is a museum of archaeology and

The Fort de Boncelles is one of twelve forts built as part of the

The Fort d'Embourg is one of twelve forts built as part of the

The Fort de Chaudfontaine, also called the Fort de la Rochette, is one

Castle of Waroux is a castle in Belgium.

The Prince-Bishops' Palace of Liège is on place Saint-Lambert in the

Το Αστεροσκοπείο Γ.Μ. Κεκ (W.M. Keck Observatory) είναι ένα αστεροσκο

Griffith Observatory is in Los Angeles, California, United States.

Το Αστεροσκοπείο Λικ (Lick Observatory) είναι ένα ερευνητικό ίδρυμα

Purple Mountain Observatory (Шаблон:Zh), also known as Zijinshan Astro

The Mount Washington Observatory (MWObs) is a private, non-profit