Observatory of Strasbourg
The Observatory of Strasbourg is an astronomical observatory in Strasbourg, France. == History == This observatory is actually Strasbourg's third observatory: the first was built in 1673 on one of the city's surrounding towers (the astronomer Julius Reichelt notably played a role in its establishment), and the second in 1828 on the roof of the buildings of the Academy.
Source: Wikipedia — Observatory of Strasbourg (CC BY-SA 4.0)