The "Father of Arizona" tried to build a Zoroastrian fire temple on the hill where he's now buried.

This southwestern historic site was designed and built by an artist who wanted his work to "feel at home."

This whimsical outsider art wall holds tiny treasures donated by the local community.

A ghost town that was wiped out by a flood in 1940.

An abandoned village that doubled as "The Hunger Games"' post-apocalyptic wasteland is up for grabs.

One of the oldest Black communities in western North Carolina and one of the largest Black Mennonite congregations in the country.

A cabin completely covered in coffee mugs, where visitors are welcome to leave one of their own—if they can find an empty nail.

You can find America's highest suspension footbridge at Grandfather Mountain in North Carolina.

Cut into a sheer cliff face, these stairs are the only way to reach a secluded Scottish harbor.

Joe Minter is only doing the work of God in his yard, he says.

Every last book in this bookstore is signed by the author.

A unique book shop with a collection of rare tomes and a nostalgia museum.

Touching displays of wishes for peace from the Cold War era.

A cave covered with bizarre stalactites of cloth.

Light still pours into the ruins of this ancient Islamic observatory.

The Avenue of Mausolea is a series of grand palatial tombs.

A fiery crater has been burning in the Karakum Desert since 1971.

Ancient barriers wrap around what was once an important stop along the Silk Road.

Once a bustling fishing port, this semi-ghost town is now more than 90 miles away from the shore.

This "tower of death" has acted as an observatory, a religious hub, and an executioner's lair.

Where you'll find anything but nothing.

Glacial lake that mysteriously empties itself every year.

Submerged trees jut ghost-like out of an idyllic turquoise mountain lake.

The lovely lake that was naturally dammed, then naturally destroyed, then unnaturally saved.