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

This fast-food outlet is the only space and UFO-themed McDonalds in the world.

A blacklight journey through a celestial art exhibit.

Some 2,000 carvings show this rare desert spring has been an oasis for travelers for over a thousand years.

Thomas Jefferson's estate is home to hundreds of varieties of historic fruits and vegetables.

The world's longest known cave system.

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

400 million-year old limestone caverns nestled in the Ozarks served as shelter and a hideout for cultures throughout North American history.

A small storefront museum explores the history and myth of West Virginia's famous urban legend.

Beyond the usual stories that attend old prisons, this one has deep bloody undercurrents.

The site of one of history's most indelible and horrific tragedies.

Beautiful stained glass depictions of the history of human flight fill this surprising chapel.

This little-known Revolutionary War fort is supposedly haunted by the ghosts of its past.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

America's post-nuclear-attack chambers of Congress.

This rural community has attracted both scientists and techno-refugees due to its federally-mandated lack of technology.

The world's largest fully steerable radio telescope.

The site of the one and only battle of Lord Dunmore's War.

This red-eyed chrome beast pays homage to the popular modern myth of West Virginia's insectoid monster.

The farming museum contains an extensive taxidermy collection, including the world's largest stuffed horse.

These rows of World War II-era bunkers were the scene of some of the infamous Mothman sightings.

Prison made famous by The Shawshank Redemption has been out of commission since 1990.

This recycled wax museum may be the only one that features John Travolta in a Bible scene.

A 70,000-square-foot institution dedicated to a very literal, creationist perspective on the Book of Genesis.