The Starfleet Museum is was a museum with several facilities that housed starships important to the history of Starfleet.
The Daedalus-class USS Discovery was housed at the Starfleet Museum in San Francisco and was a walk-through exhibit. (DS9 - Millennium novel: The War of the Prophets)
The Starfleet Museum had a facility on Epsilon Sigma V, which also boasted a great giftshop. The Planet Killer was one of many large exhibits at this "Trophy World". (TNG novel: Before Dishonor)
Starbase 122 also featured part of the Starfleet Museum. The USS Enterprise-A was on display there. (TNG comic: "Old Debts") Every starship that bore the name USS Enterprise was also stationed and placed at the museum, honoring the famous Federation starships.
Captain Jean-Luc Picard encountered a Type-1 phaser from the 23rd century, that he believed he would be able find in this museum. (TNG novel: Requiem)