The world's smallest park was dedicated in 1948 as the only colony for leprechauns west of Ireland.

An emporium for the weird, creepy, rare, and just plain gross.

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

The graveyard holding the remains of George Washington's slaves was forgotten for nearly 200 years.

Look closely and you’ll notice that the color changes a third of the way up the tower.

A little marble compass above George Washington's (empty) tomb in the Capitol marks where D.C.'s four quadrants intersect.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

An artsy hidden staircase leads to breathtaking views of San Francisco.

From a neon Rapunzel to a bike traffic meter to a street fair color scheme, the most opened drawbridge in the US is a veritable art gallery.

This former coal gasification plant found a curious second life as a popular public park.

A wall of chewing gum moonlights as collective art.

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

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

The fifth-longest natural arch in the world, and the longest outside China.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

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

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

This historic hotel on Bathhouse Row in Hot Springs National Park has a storied history of gangsters and baseball greats.

This beautiful grotto is one of those places where you can't believe you're just outside Austin.

An enormous pink granite batholith, long attributed with spiritual powers by the Tonkawa Indians.

A recreated Stonehenge stands in a country field, complete with Easter Island moai heads standing as sentries.

A spring-fed pool so deep it's used for scuba diving as well as swimming.

Continuing the tradition of the dime museum in style.

Mysterious glowing orbs float through the desert night.