To enter the gallery, you pass through the magnificent baroque Teatro Farnese, built in 1617–18. Made entirely of wood, it was largely destroyed in a 1944 Allied bombing, but it's been flawlessly restored. Inside the gallery masterpieces by Correggio, Parmigianino, Leonardo da Vinci (1452–1519), El Greco (1541–1614), and Bronzino (1503–72) hang at the little-visited Galleria Nazionale. The museum is housed on the piano nobile of the massive and somewhat forbidding Palazzo della Pilotta, which was constructed on the riverbank in 1618. The palazzo takes its name from the game pilotta, a sort of handball played within the palace precincts in the 17th century. The building also suffered much damage in a May 1944 Allied bombing, and has been greatly restored.