Lenin's mausoleum, located in Red Square, is a fascinating place to tour while in Moscow. Rather than a burial, the founder of the Soviet Union's body was embalmed and placed in a glass sarcophagus, and thousands went to see him every day. His body is still on display there now, as the embalming process has proven effective. Furthermore, Soviet leaders used to stand on top of the mausoleum during military parades and ceremonial events, so there is historical significance both within and outside the building.