Housed within a beautifully restored Spanish-era building (originally the *Escuela de Niños* and later a tribunal, prison, and municipal library) adjacent to the Boac town plaza, the Marinduque National Museum (managed by the National Museum of the Philippines) is the island's premier repository of cultural and archeological heritage. The museum features permanent galleries displaying rare pre-colonial secondary burial jars recovered from island caves, centuries-old Ming and Qing dynasty porcelain ceramics salvaged from Marinduque shipwrecks, traditional loom weaving displays, and historical exhibits detailing the evolution of the Lenten Moriones tradition. **Traveler Logistics:** Open Tuesday to Sunday from 9:00 AM to 4:00 PM. Admission is completely free to the public. Excellent educational stop before exploring the rest of the island.