International Atomic Energy Agency Tourist attraction in Wien, Austria

Reference:Roman Boed / CC BY 2.0
Reference:IAEA Imagebank / CC BY-SA 2.0
Map gps coordinates: 48.233889, 16.416111
Address: Platz der Vereinten Nationen, 1220 Wien, Austria

In the 1950s, after the Soviet Union's first nuclear weapon test, the International Atomic Energy Agency was created along the lines of Niels Bohr's suggestion.

Source: Wikipedia