A quaint museum housed in a dazzling restored turn-of-the-20th-century mansion designed by Alfredo Wiechers, it showcases historic Spanish, African, and Taíno musical instruments, some of which can be played; the guitar collection is a highlight. There are also exhibits on the foundations of Puerto Rican music, like the bomba and plena, which traces their roots back to Africa and are a major influence in modern salsa.