The architect Rafael Moneo remodelled and renovated the Palacio de Villahermosa, a building from the early 19th century, for the museum. It is said that this museum is the perfect complement to the Prado and Reina Sofía, because it bridges the gaps in their respective collections. There are splendid works, dating from the 14th century up to the masterly Pop Art of the 20th century. A new building with 18 rooms, which houses the Carmen Thyssen-Bornemisza Collection, has recently been added to the museum. Two of these rooms are used for temporary exhibits.