The cultural riches of Cartagena are immense, and you will not have time to see everything. The Museo del Oro Zenú focuses on the craftsmanship of the Zenú people. Although small compared with the dazzling Museo del Oro in Bogotá, it contains some exquisitely detailed pieces. Even those who don’t especially care for contemporary art should take at least a few minutes for the Museo de Arte Moderno, occupying a 17th-century customs house and a 19th-century addition on the Plaza de San Pedro Claver. Nearby, the Convento y Iglesia de San Pedro Claver draws numerous tourists to the soaring church, but far fewer pay the entrance fee to see the convent, centered a thriving tropical garden. I also recommend hiring a driver/guide to see some of the sights outside the historic center. The lovely hilltop Convento de la Popa offers panoramic views of the city, while the immense Castillo San Felipe de Barajas also has a spectacular outlook, as well as a fascinating system of defenses.