Barranquilla, the capital of Colombia’s Atlántico Department, is a bustling seaport flanked by the Magdalena River. The city is known for its enormous Carnival, which brings together flamboyantly costumed performers, elaborate floats and cumbia music. In the chic neighborhood of El Prado, the Museo Romántico showcases artifacts from past festivals and exhibits on famous Colombians, like writer Gabriel García Márquez.