>>513529927US Presidents may build libraries after their time in office. The libraries hold records/archives for that president and contain a museum. I think it's up to each president to get donor funds to build a library, but I'm not completely sure. Only about a third of the presidents actually have one, but Congress only passed a records act in the 1950s. Before that, records were stored, destroyed, lost, scattered, whatever. Usually the library is in that president's home state. I've been to one myself, the LBJ museum in Texas, it has the official presidential motorcade car, a recreation of the offices of the president and first lady, some of their clothing and such on display, some of the gifts they were given by various entities, that sort of thing.