The Zeughaus in Berlin, Germany is the oldest structure at Unter den Linden. It was built by Frederick III, Elector of Brandenburg between 1695 and 1730 in the Baroque style, to be used as an artillery arsenal for the display of cannons from Brandenburg and Prussia. The first building master was Johann Arnold Nering. After his death in 1695, he was followed by Martin Grünberg, then Andreas Schlüter and finally Jean de Bodt. Andreas Schlüter designed the keystones above the round-arch windows in the form of heads of giants. Georg Friedrich Hitzig constructed the monumental flight of steps to the upper floor of the north wing and also a roof over the courtyard .
The building was converted into a military museum in 1875.
Wikipedia https://en.wikipedia.org/wiki/Zeughaus
Address 2 Unter den Linden, Berlin 10117, Germany
Coordinates 52°31'5.161" N 13°23'49.069" E