This nearly 200-year-old restaurant's history includes an exiled French prince, JFK, and a very hungry Daniel Webster.

This landmark cemetery in Boston was created more than 300 years ago.

Narrowest house in Boston.

The site of Paul Revere's historic two lantern warning.

"Mock all and sundry things, but leave the saints alone."

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

An outdoor urban gallery of large-scale artworks by the world's most influential street artists.

The world's largest collection of the world's largest objects is in one small Illinois town.

A museum dedicated to the history and art of staying clean.

The world's first nuclear power plant is open to visitors looking to role-play a meltdown.

Home to the deepest rift anywhere on Earth.

A Wild West jailhouse that slid down the mountainside.

This church on a Tohono O'Odham reservation has stood since 1797.

A museum and tribute to a brave profession.

Miniature art that tells an enormous story.

America's only nuclear missile silo open to the public.

A reproduction of earth's many biomes.

Dramatic river bend surrounds a natural red-rocked pedestal.

Most-visited and most-photographed slot canyon in the American Southwest.

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

Strange red rock formations that have been attributed to a higher power for hundreds of years.

Once a mortuary that held the remains of Buffalo Bill, this Denver hotspot is now a death-fixated restaurant.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."