One of the most popular things to do in Key West is to snap a photo with the colorful buoy marking the southernmost point of the United States. Sitting at the intersection of Whitehead and South streets, the striped buoy is just 90 miles north of Cuba. Next to it, you'll also find a plaque dedicated to Cubans who have lost their lives trying to reach America.

Keep in mind, though, that this isn't truthfully the southernmost point – just to the west of the buoy is a patch of land that's owned by the Navy and closed to the general public. Recent travelers say this concrete buoy is a must for first-time visitors to Key West, but they also add that the crowds can make it difficult to snap a quality photo. If a stop at the buoy is on your to-do list, heed the advice of recent visitors and get up early to beat your fellow tourists. Access to the buoy is free 24/7.