Key West, Fla., is a beautiful little town that does double duty as the southernmost incorporated spot in the continental United States. The drive from Florida's mainland to the island is long enough that it almost feels like you're leaving the country. No visit to Key West is complete without a stop over at B.O.'s Fish Wagon, a local institution known for its unique decor and killer burgers. Beach lovers will have a blast at Fort Zachary Taylor Historic State Park (which charges a small entrance fee) or the nearby Higgs beach (which is free), which is known as one of the better places on the island to snorkel. One of my favorite parts of my recent visit to Key West was the day I spent riding around town on a rented moped — it's the perfect way to get a sense of the place.