In this photo taken Monday, July 20, 2015, visitors enjoy the panoramic view from the viewing terrace of the Palace of Culture and Science in Warsaw, Poland. The building was a gift from Soviet leader Josef Stalin and is celebrating its 60th birthday on Wednesday. Some officials called for the building to be torn down in a symbolic gesture after Poland shed communism and Moscow's dominance in 1989, but the opinion prevailed that it is a witness to national history and should be preserved. (AP Photo/Czarek Sokolowski)