Old Havana is a UNESCO World Heritage Site, where visitors can explore historic plazas, old streets, and old buildings, such as Plaza Viejo and Plaza de la Catedral, visit the Havana Cathedral and Plaza de Armas, and stroll along charming Calle del Bishop. Learn about Cuban history while visiting the Museum of the Revolution. In Old Havana, visitors can also enjoy a classic car tour, sip a daiquiri at a bar favored by Ernest Hemingway, the author of "The Old Man and the Sea," and sample local cuisine. Admire the murals of Hamel Alley and discover local culture through street musicians and markets.