The Bacardí family built a small rum distillery here in the 1950s. Today it's the world's largest, capable of producing more than 20 million cases a year. A basic tour of the visitor center includes one free drink, or you can opt for a mixology class or rum tasting.

You can’t really miss it—Florence’s cathedral (Cattedrale di Santa Maria del Fiore) dominates the skyline with that massive red-brick dome. Construction began in the 13th century and continued for nearly 150 years, which is evident in the diverse styles. The outside is covered in pink, green and white marble—oddly beautiful up close. Inside, check out Vasari’s Last Judgment fresco under the dome. If you’re up for the climb (and it is quite a climb), the view from the top is worth the leg burn.

Parque de las Palomas is a courtyard on top of the city wall, with great views of Bahía de San Juan and the criss-crossing water traffic that includes Brobdingnagian cruise ships. The park gets its name ("Park of the Pigeons") from the hundreds of pigeons that call the park home.