Declared an historically and culturally significant monument in 2015, when was the Berlin world clock - also called the Urania clock - constructed?

The World Clock is a huge turret-style clock situated on Berlin's Alexanderplatz. Since its construction in 1969, it has grown in popularity as a tourist attraction and gathering spot. The German government designated the clock a historically important monument in July 2015.

Asked by Vasilii Kulev · Last updated 4 years ago · 841 views · SOURCE