The Fernsehturm (Television Tower) constructed by East Germany in downtown Berlin between 1965 and 1969 was nicknamed The Pope’s Revenge because of a very odd thing that happened shortly after it was constructed.

Berlin was divided as East Germany was under the control of the Communists during this period and the tower, which stood 368 meters high, loomed over the city.

It was the fourth-highest building constructed in the world at the time and was a symbol of the glories of communism.

It was constructed as the East German Communist Party was clamping down on Christianity in the regime and forcing churches to remove crosses from their buildings.

But a strange thing happened, when the sun struck the tower it reflected out an image of a Greek cross.

Wikipedia explains:

When the sun shines on the Fernsehturm’s tiled stainless-steel dome, the reflection usually appears in the form of a Greek cross. Berliners nicknamed the luminous cross Rache des Papstes, or the “Pope’s Revenge”,^[10][11] believing the Christian symbol a divine retaliation for the government’s removal of crosses from East Berlin’s churches. For the same reasons, the structure was also called “St. Walter” (from Walter Ulbricht). U.S. President Ronald Reagan mentioned this in his Tear down this wall speech on 12 June 1987.^[11]

READ: Fernsehturm Berlin: Wikipedia