The Cathedral Museum spreads over four floors and includes the cathedral's large, 16th-century, Gothic/plateresque cloister. You'll see a sizeable section of Maestro Mateo's original carved stone choir (destroyed in 1604 but recently pieced back together), an impressive collection of religious art (including the botafumeiros, in the 2nd-floor library), the lavishly decorated 18th-century sala capitular (chapter house) and, off the cloister, the Panteón de Reyes, with tombs of kings of medieval León.