The Museo de la Atarazana (Calle Colón 4, tel. 809/682-5834, 9 a.m.–6 p.m. Thurs.–Tues., RD$50) is normally filled with the sunken treasures recovered from Spanish galleons that went down in the waters off the coast of the Dominican Republic [1], particularly the Concepción, which went down in the Bahía de Samaná.
Coins, crucifixes, spoons, swords, plates, and silver bars, among other things, have all been found and are on display here. Signs are in Spanish and English. In 2009, the museum was temporarily closed for remodeling.
Links:
[1] http://www.moon.com/destinations/dominican-republic