Check out this awesome video that gives us a thorough tour of Warner Bros. Corporate Archive in Los Angeles, California. This is where the studio holds all of their most iconic movie props after they are done being used in the production of a film.
I have to say there is a lot of stuff to see including the masks from Batman, the Batmobiles, a collection of weapons rigs from The Matrix, along with stuff from 300, Suicide Squad, Harry Potter, and more. This is the place where I can spend days looking and finding new stuff.