An FDR-era tuberculosis sanatorium has stood abandoned in the suburbs of the U.S. capital for over 30 years.

Despite its lavish ornamentation, and wholesome lifestyle of its devotees, this mountain commune has faced its share of issues.

This natural wonder drops 16 stories straight down through rare flora and streaming waterfalls.

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

A bizarre roadside attraction and the first instance of miniature golf in the world.

Home of an evil witch famous within southern folklore.

What else would you call a playground hidden in Alabama's oldest and largest cemetery?

A beautifully detailed Victorian house designed to be easy to flee, built by a man haunted by fire.

World's largest collection of serial killer artwork and other macabre exhibits.

Eighteen miniature death-scene dioramas.

The "3rd largest" city in California is an empty mirage of suburbia in the middle of nowhere.

This lab's maddening silence is good for business but bad for sanity.

This ominously named New Jersey street seems to be attracting over-the-top legends of its own making.

Moonbows over Kentucky.

Enormous lake at the bottom of a unique cave system.

The secret city built by the Manhattan Project.

Labor provided by Great Depression-era programs restored these 25,000 acres in Tennessee.

Visit this playground of waterfalls, caves and sinkholes.

This grave in a ghost town cemetery marks the death of a witch on a day that never happened.

The multinational Burger King chain is banned from operating within 20 miles of a family restaurant filed under the same name.

This folk art wall claims to be the world's one and only memorial to the bygone age of hippies.

In the loving memory of a tragically deceased role-player this Illinois park is decked out with both dungeons and dragons.

Symbolic attempt to overcome the issues of life.

This open air cathedral invites all faiths to worship under the only roof big enough to fit them all: the sky.