One of almost 200 confirmed impact craters in the entire world, untouched for tens of millions of years.

This bridge is haunted by the ghost of a distraught mother.

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

Classy up your Big Mac with bow-tied servers and chandeliers at the world's fanciest McDonald's.

While knives are the main feature in this store, visitors will also find dinosaur bones and meteorites.

Enormous lake at the bottom of a unique cave system.

This limestone outcropping was once a ceremonial site for ancient Native Americans.

There’s a hidden military meme engraved on the World War II Memorial.

An unfinished rail tunnel that has since been used to house cheese and bats.

The whimsical construction on the roof has given rise to many a Montgomery myth about its contents.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

Locals place their offerings on this nightmarish gnarled tree so the witches won't summon another storm.

The Midwestern United States' tribute to Michelangelo is a foam statue sprayed with gaudy gold paint.

Cadillac where country's first big star was found dead.

Colloquially known as "the lynching memorial," this is the United States' first memorial to the victims of racial terror at home.

Designed by Maya Lin, the memorial honors 41 individuals who died fighting for equal rights between 1954 and 1968.

Famous for its bio-luminescent inhabitants, known as "Dismalites" .

This 12-foot-tall T-rex is the largest K’Nex skeleton sculpture in the world.

It may look like no more than a full-scale model, but every part of this full Space Shuttle stack had a working role in aviation history.

Bananas are often left for the first monkey America ever recovered alive after being launched into space.

A propulsion engine testbed that paved the way for the Space Shuttle launch sits without recognition at this rocket center.

Once a bustling cotton factory, this early 20th-century building is now home to a thriving artspace.

What else would you call a playground hidden in Alabama's oldest and largest cemetery?