A Maryland museum dedicated to Black history, housed in a historic church.

The highest point in Maine is a grand gift to the state citizens that also happens to be one end of the Appalachian Trail.

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

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

This titanic oil company sign is a reminder of the Americana boom of the 1970s and also its commoditization.

What was once a presidential estate is now an exotic menagerie and home to the Budweiser Clydesdales.

The former home of Samuel Clemens and family remembers the happiest period of the author's life.

Hoax, mistake, or evidence of dinosaurs in human times?

A battle between nature and architecture in the Cambodian jungle.

Bombed and burned, this monument represents the often controversial ties between Vietnam and Cambodia.

Originally a meeting place for foreign correspondents and war reporters, the FCC remains an atmospheric spot for sunset drinks in Phnom Penh.

Khmer Rouge's high security prison.

5,000 skulls in memorial to those killed by the Khmer Rouge.

3,200-square-foot mural inside Dartmouth Library depicts the history of America with images of human sacrifice, ancient gods, and other unspeakable terrors.

Decorative shell walls built in the 1940s sit atop an ancient midden created by the Calusa Native Americans.

Former utopian colony based on the belief that the universe exists in a hollow sphere.

These Benedictine nuns have been making artisanal cheeses since before it was cool.

A religious-themed park filled with folk art to bring biblical stories to life that fell into disrepair and now being restored.

One man's ambition created this psychedelic log home.

On the edge of grassland in northeastern Colorado, these rock formations are some of the few remnants of a high plain that has eroded away over millions of years.

Above Breckenridge, a destructive mining technique sits sunken in a small pond.

A hotel with a rich Wild West history of miners and bootleggers.

Air Force Academy Chapel made of 100 identical tetrahedrons works to inspire those of all religions.

Community owned and operated, this property is home to a diverse set of nudists.