Taxidermists stuffed his body and it was put on display as a pilgrimage site for generations and generations of Leftists.
Ironically, Evita Peron had the same thing done to her, and she was just a whore who got into politics and its sisters, corruption and demagoguery. Common folk of Argentina were nuts about her, though. Some of the more ignorant, after her death, used to offer up sacrifices to her pictures in old magazines.
During my first trip to Russia in 1992 we had less than an hour in Red Square. We saw St. Basil’s Cathedral, a church turned into a museum, an execution platform, and yes, Lenin’s body.