In this photo taken Monday, July 20, 2015, Wit Henryk Bak holds a 1958 photo of himself, right in the photo, and three colleagues from the time when he worked as lift maintenance intern at 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)