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

A giant knight, sex education, date shakes, and Jesus coexist happily in this Coachella Valley desert oasis.

Colorful Native American paintings are hidden within this small cavern.

Originally the home of chewing gum mogul William Wrigely Jr, it is now the official offices of the Tournament of Roses.

Come for the pizza, stay for a performance on the world's largest theater pipe organ.

A journey begins with a single step, and for many, the road-trip of a lifetime started at this Chicago intersection.

A collection of noses tucked inside an art museum reveals how times have changed.

A museum celebrating rare American motorcycles where everything runs—and none of it quietly.

As a show of peace, a Japanese naval pilot gifted his 400-year-old Samurai sword to the Oregon town he bombed.

From mining complex to industrial exhibition, this museum once played a major part in the X-Files.

An American city stranded at the tip of a Canadian peninsula where strict adherence to the "49th parallel rule" became problematic.

The world's largest wooden trestle stretches across this desert canyon in Anza-Borrego Desert State Park.

This perfectly preserved Chinese medicine shop was untouched for decades before being reopened as a museum.

See where Bill Murray kidnapped a hapless Punxsutawney Phil.

A historic and oft-filmed prison stands in a Chicago suburb.

A century-old hotspot for jazz, frequented by everyone from Charlie Chaplin to Al Capone.

This historic hotel invented the chocolate brownie.

It houses the remains of a 17th-century version of the Titanic.

Every weekend, the parking lot of this Buddhist temple turns into a Thai street-food paradise.

The world's first and only museum dedicated to dachshunds.

A natural dome made of volcanic glass in Inyo National Forest.

One of Chicago's last seafood smokehouses perfects a dying breed of fishcraft.

Thomas Edison's home and final resting place also boasts an impressive garage, where some of the earliest electric cars are on display.

The famous author's cottage hideaway.