This rusted car found in Petrified Forest National Park's Route 66 exhibit may be the most photographed abandoned car in the country.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

The largest burial mound in the United States holds the remains of prehistoric West Virginians.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

This sign designates the road that leads to the infamous Area 51.

See massive fossils that are over 200 million years old in northeastern Arizona.

A pharmacy built in the shape of a mortar and pestle, now resembles a fancy cocktail.

This tombstone marks the final resting place of the beloved 1990's character, Ernest P. Worrell.

Unique tower has outlasted a takeover of the company.

This stuffed pigeon of war had the very serious name "John Silver" until he lost a leg in battle.

A real flying saucer, contracted by the U.S. Air Force.

You can walk through the first Boeing Air Force One, which famously carried JFK's casket from Dallas back to D.C.

Inside houses a vast collection of military aircraft and missiles spanning the ages.

A massive hydrovolcanic explosion left a half-mile wide crater in Death Valley.

One of Japan's most famous sights, the bridge was originally built in 1673.

One person’s lost luggage is another person’s treasure.

This massive cave is a sight to behold.

A modest Alabama recording studio where some of music’s biggest voices found their sound.

A fascinating museum near the birthplace of the greatest track and field athlete of all time.

The quiet resting place of a rock and roll legend.

This coastal port saw one of the most significant battles of the Civil War.

This 36-foot-tall bronze Lady Liberty holds a real flaming torch.

Monument to the cotton-destroying boll weevil.