It houses one of the most important art collections in the city.

It has 3,028 works of art from America, Asia, and Europe, some of which are 2,000 years old.

Highlights include the Filipino chest with the oldest map of Manila, Philippines, as well as other valuable objects such as ivory-carved spheres of life, an 18th-century pipe organ, paintings by the great Italian masters Bernardino Gagliardi and Giuseppe Molteni, and a 1st-century BC Roman amphora, among many other artworks.