"Basílica y Convento de San Francisco de Lima Centuries-old catacombs decorated with human bones pepper the crypts at this Franciscan monastery dating to 1774. Decked out in impressive Spanish Baroque architecture, the canary-yellow church and monastery also house a remarkable library with some 25,000 antique texts (some predating the Spanish Conquest) and are flush with romantic courtyards and cloisters. Don't forget to look up: A magnificent Moorish-style cupola, carved of Nicaraguan cedar in 1625, oversees the main staircase."