Faces carved into the cliffs create an otherworldly walking trail.

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

An occult-y, historic hotel with the World's Largest Ouija board on the roof.

A bizarre house filled with an astounding array of collections.

A bypass decorated with large wooden troll carvings.

An unlikely Transcendental Meditation haven in the American Heartland built around the ancient Vedic principles of balance and harmony.

This architectural stunner is one of the few surviving Egyptian Revival theaters in the U.S.

This lush 12-acre site was once named the finest Japanese garden in North America.

This limestone outcropping was once a ceremonial site for ancient Native Americans.

This moving cemetery sphere is a slowly rolling stone.

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

Part of a worldwide art project, this mysterious semicircle of concrete shapes holds the pieces of a larger story.

Symbolic attempt to overcome the issues of life.

A gregarious Ohio resident has been building his whimsical temple to peace for decades.

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

North Carolina's finest examples of Native American pictographs have survived for 5,000 years.

These sub-farmland caves are home to a majestic stalactite known as the "Crystal King."

The entrance to this sinisterly named tunnel hides behind a Tim Hortons.

Nature and art meet in this curvy creation

This maze-like slot canyon is a unique gem within an already fascinating geological area.

This tiny man looms large over downtown Charleston.

Tucked away in the forests of Indiana resides an abandoned waterslide that is now a popular graffiti haunt.

A turn-of-the-century architectural marvel built on healing mineral springs and salt licks.

A historic hotel library in Indiana hides more than a few secrets on its shelves.