Prague Astronomical Clock (monument) built
1410 CE.
Shown on the map at 50.087°, 14.421°.
The Prague astronomical clock, or Prague Orloj (Czech: Pražský orloj [praʃskiː orloj]), is a medieval astronomical clock attached to the Old Town Hall in Prague, the capital of the Czech Republic.
Text from the Wikipedia article Prague astronomical clock, licensed CC BY-SA 4.0.