The Cathedral Museum of Astorga is surprising in size. It has a large number of ecclesiastical parts that denote the city's importance in the past and also its variety of historical and artistic wealth. The small room with old "Maragotos" costumes, jewels and accessories is interesting. It's accessed through a side door in the atrium of the Cathedral and is in the former School of the Cathedral, the Library and the Archive. You can access the Cathedral through the Senate.