The kind of mixed-up place that drives archaeologists crazy.

Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

This lakeside tower is the third attempt at getting a tourist destination to stick on the spot.

This tiny patch of arid sand sits in one of the greenest states in the United States.

Explore the dark underground corridors of this graffiti-covered former military fortification.

The world's only international cryptozoology museum is host to an unrivaled collection of mysterious objects.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

Eons ago, a rushing lava river formed this pristine passage through solid rock.

The symbol was surreptitiously built into the river bank by German prisoners of war.

The outcropping is graffitied with the name of the beloved musical Muppet television series.

In the remote high desert of New Mexico, a strange array of poles beckon fury from above.

A one-of-a-kind sundial at the Very Large Array honors a radio astronomy pioneer, incorporating the original piers from his breakthrough radio telescope.

The ruins of this abandoned fort now stand as a picturesque reminder of America's march West.

This centuries-old pueblo church houses the body of a Franciscan friar who is said to be a rare "incorruptible" corpse.

Adobe ruins punctuate the beauty of an 800 foot canyon carved by the Canadian River.

Deadly airliner crash preserved for those willing to climb and pay respects.

A burnt-out motel with priceless Native American artwork in the basement, redeveloped into apartments.

A preserve with 75,000 ancient drawings remains the realm of public – not just scientific – exploration.

Twenty-seven massive radio antennas on the high plains of New Mexico search for life on other planets.

A unique geological area spiked with wind-carved rocks that resemble teepees.

On the side of a remote mountain, a stone face bearing an inscription of mysterious origin.

Despite time, colonization, and the brutal New Mexican heat, these Pueblo ruins still stand.

These Pre-Columbian petroglyphs contain representations of birds, deer, hunters, and even some early Native flute players.

A cave's rare beauty held a cavernous secret hidden underground.