The oldest bar in Missouri is hidden within a limestone brewery cellar more than 50 feet underground.

Like Stonehenge, but with boats and oodles more charm.

This historic cliffside mansion uses a natural cave for air conditioning.

The house where the famed outlaw was shot by a dirty coward is now a museum to the criminal's legacy.

A geological oddity formed by two rivers carving out a mass of limestone on both sides.

Curious cave that stays a cool 56 degrees all year long.

Created by Catalan artist Joan Miró in 1978 and made up of 350,000 tiles, this mural is the only large-scale glass mosaic the artist ever created.

A museum where visitors can learn about greyhounds and (more importantly) pet them.

This pop-culture shop also offers the chance to become part of their favorite tv show or movie.

This museum glorifies the humble potato.

Feeding hungry Ballard boat workers since 1922.

A whimsical menagerie of devils, krampuses, satyrs, and other horned creatures.

An old-timey peepshow allows visitors to gawk at some of the world's most freakishly large footwear.

Residents of Fremont in Seattle have considered it the center of the universe since the 1970s.

An ice cream parlor chain that caters to vegans and pinball fans equally.

This painted blacktop brings the classic arcade game to life.

A walk through the historic city center, under the streets of Seattle.

A giant Troll lurks under one of Seattle's oldest bridges.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

Quite simply the largest tree in the world (by volume).

The only diamond mine in the world where you can keep what you find.

Grant Wood painted some of his most famous works of art at this studio.

Hidden in the grounds of the Fort Dodge Museum is a "real" and terrifying petrified giant.

This seemingly charming home memorializes and honors the victims of a century-old unsolved murder.