Plaza de la Catedral on a rainy night. The cathedral was built in the 1700's, and many of the other nearby buildings housing tourist-friendly bars and restaurants are from the 18th century as well.

Restaurante el Patio is a great place to have a daiquiri or some grilled shrimp on a star-lit evening, and Ernest Hemingway's favorite bar in Havana, La Bodeguita del Medio, is just a block away down a side alley.