Known as the "Cross At The Crossroads," this massive metal cross is just short enough to avoid the FAA.

This simple, broken column marks the final resting place of one of America's most famous explorers.

This two-room shotgun shack in Tupelo is the birthplace of a King.

A Muppet museum in small-town Mississippi honors the roots of Jim Henson's most beloved creation.

A circus legend leaves an unexpected endowment.

The highest point in Florida is still the lowest high point in the country.

The highest point in Mississippi is a hilltop that was once used to bombard a nearby town with artillery.

Every winter, this tiny islet on Florida’s Gulf Coast is swarmed by some of the largest birds on the continent.

Decorative shell walls built in the 1940s sit atop an ancient midden created by the Calusa Native Americans.

Pay homage to a mysterious feline artifact outside of this Florida museum.

Wading through a small lagoon reveals a secret, wild stretch of pristine beach.

One of the world's largest hedge letterings spells out this arboretum's name over 2,040 feet.

An office built to look like a giant basket.

The mounds at this site were reconstructed with the help of archaeologists and historians.

It took more than 20 years and a sharp eye for one man to assemble this quirky collection.

The actor best known for slapstick comedy is memorialized in his home town.

This university transit system is a 1970s vision of the future.

Pennsylvania's highest point is spotted with boulders which were pushed to the surface by nothing but cold.

Despite violent work crews and massive delays this abandoned canal tunnel was built to last into the modern day.

The final resting place of two members of the infamous Doan gang, notorious outlaws and Revolutionary War Loyalists.

This stone tower marks a lookout point over the historic Washington Crossing, and maybe some buried treasure.

Final resting place of a pioneering scurvy researcher.

A former major munitions plant that has been converted into a sprawling art space.

This colonial tavern played host to George Washington, Thomas Jefferson, and other famous early Americans.