The Europaturm (Tower of Europe) in Frankfurt, Germany.

The Europaturm ("Tower of Europe") is a 337.5-metre (1,107 ft) high telecommunications tower in Frankfurt, Germany.
Designed by architect Erwin Heinle, the tower's construction began in 1974. At its completion five years later, it became the tallest free-standing structure in the Federal Republic of Germany. With its height of 331 metres (1,086 ft), Europaturm became Germany's second tallest structure, after the Fernsehturm Berlin (368 metres (1,207 ft)). Even without the height of the antenna at its top, the building is over 295 metres (968 ft) high, which makes it Germany's tallest structure by roof level. Its base, at 59 metres (194 ft) thick, is the widest of any similar structure in the world.

Thanks and credit to Google Earth Studio.