A small metropolis of Pueblo cave dwellings have been carved right into the hillside of this national monument.

A multi-storied adobe complex has been inhabited for more than a thousand years.

These aggressively sustainable art homes look like something out of 1970's science fiction.

A phenomenal assembly of pueblos in New Mexico is the most complete example of ancient ruins north of the border.

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

A museum dedicated to the alleged Roswell Incident.

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

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

Home to items never before seen by the public.

Elevated freight railway turned wildly successful urban park.

A wonderful display of arts and crafts handmade by local artisans in the Southern Appalachians.

A folk art mecca famous among outsider art fans.

This North Carolina museum is keeping the pinball craze alive, with a little Space Invaders on the side.

The highest point in North Carolina and the United States east of the Mississippi River, Mount Mitchell is named after argumentative explorer Elisha Mitchell.

The highest point in Tennessee, Clingmans Dome bears witness to the ravages of one type of insect.

This bright yellow relic is the final survivor of a short burst of seashell-shaped petrol pumps.

Who needs fancy modern water slides when this giant North Carolina rock works just as well?

A piece of outsider public art accompanied by a strange urban legend.

Knoxville’s architectural icon was the symbol of the 1982 World’s Fair, even catching the googly eye of Bart Simpson.

This historic train station has been converted to a locomotive themed hotel.

At 135 years old and counting, this historic print shop is heaven for poster nerds and music buffs.

Live long and prosper in Tennessee.

This replica of the Greek structure is in the heart of Nashville.

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