In this small strip mall resides the largest collection of original art from the famed TV artist.

Mariners once used this prehistoric landfill as a navigational landmark.

An 18th-century Spanish watchtower made entirely of seashell and concrete.

Hidden in the plaza next to a pizza shop is an amazing little oddities shop.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

A tribute to Ponce de Leon's supposed quest for eternal youth.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

St. Augustine's record-setting narrow street was designed to protect against pirates.

A luxurious 1880s hotel with its fair share of Tiffany stained glass, Edison electricity, and of course, ghosts.

A lion given to the prime minister somehow got stuffed and sent to Florida.

Possibly the world's oldest rug, this Egyptian relic is woven entirely from ancient cat hair and once carried a mummified human foot.

Intertwined, interspecies trees which locals believe can grant boons to lovers.

A secret, rocky playground hidden amongst the plain white beaches of the Florida coast.

A replica of one of the more than 15,000 civilian lookout towers that lined the U.S. coast during World War II.

The ruins of a once-thriving sugarcane plantation that was burned in the Second Seminole War.

This whimsical outsider art wall holds tiny treasures donated by the local community.

A vast array of tropical plants collected by a vacationing couple.

It may take some time to locate, but it's sure to warm even a heart of stone.

The grave of America's 11th president is not in some grand monument but instead it's hidden away on the grounds of the Tennessee Capital.

At 135 years old and counting, this historic print shop is heaven for poster nerds and music buffs.

This statue inspired by Renoir's famous painting embodies the jovial spirit of Key West.

The highway's southernmost spot is a beloved local attraction.

A historic presidential getaway on the continental United States' southernmost island.

One of the largest Native American shell middens stands 30 feet tall.