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

This conservation area is also home to many of the region's desert tortoises.

These cinderblock farmhouses were actually World War II radar stations in disguise.

The world's longest known cave system.

Terraced flowerbeds and rock sculptures in the midst of the Minnesota wilderness.

While exploring the desert, you can stop by the home of a fictional heretic from a parallel universe.

The quirky salon doubles as a retro museum run by the world's leading "hairstorian."

Located on 420 acres in the high desert, this spiritual center is dedicated to the "science of the future."

Explore 10 acres of environmental sculptures.

In which a local geological marvel becomes a quaint roadside attraction.

A psychedelic labyrinth on the San Francisco bay.

Remnants of a storybook amusement park hidden behind a strip mall.

The haunting "Hell House Altar" is one of the few remnants of an abandoned college that has been a magnet for local legends.

Hidden within an idyllic suburban garden is a memorial dedicated to the victims of a terrifying spree of killings committed on U.S. soil.

One of the earliest and best-preserved buildings in Charles County, Maryland.

Although built to generate electricity for Marylanders, this dam has become an all-you-can-eat buffet for American bald eagles.

The oldest surviving one-room schoolhouse in Montgomery County, Maryland.

One of the oldest active carousels in the country—but it might be missed by all but the keenest-eyed boardwalk strollers.

Explore the legends surrounding these mythical sea creatures inside this museum.

A tribute to the beloved, kind-hearted "homeless mayor" of Silver Spring.

The 72-foot giant escaped confinement in a large patch of mulch only to be reburied in the sandy shores of the Potomac River.

Once part of a dam servicing an early 19th century grist mill, the tucked-way falls are a tricky-to-find urban oasis.

An allegorical sculpture in Maryland wears the artist’s politics on its trunk.

An unusual sculpture, an interesting history, in a strange place, for a good cause.