Castillo de San Felipe de Barajas, Cartagena, Colombia
For a sense of Cartagena’s colonial past, take two short taxi rides from the old city. Built in the 17th century, the Castillo de San Felipe de Barajas was an impregnable, tunnel-filled Spanish fort that kept both pirates and the English Navy at bay. On a nearby hill, the 400-year-old Convento de la Popa makes a great spot for getting the lay of the land—then watching the sun set into the Caribbean. —Milena Damjanov
Pie del Cerro; Cerro de la Popa, 57/5-666-2331. This appeared in the March/April 2011 issue.