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

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

Once America’s most beautiful army base, this abandoned military fort on the coast of Monterey Bay has been left to the elements.

Despite being a perfectly pleasant place to be, Loyalton can't seem to attract any visitors.

Secret Manor, a house full of legends, the least of which is the haunting of long-deceased ladies of pleasure.

This Nevada lake holds its titular natural pyramid and, if the legends are true, a number of dangerous spirits.

One of the largest fleets of armored vehicles in the world, sitting out in the California desert.

The final resting place of up to 6,000 Confederate soldiers, the largest mass grave in the Western Hemisphere.

An alternate history park where the Union Army loses the war... to dinosaurs.

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

This sprawling museum holds one man's giant collection of real tanks.

This collection of over 50 classic pinball machines awaits visitors to downtown Roanoke.

This abandoned amusement park was built on a site with a dark history.

Visit this playground of waterfalls, caves and sinkholes.

A bizarre roadside attraction and the first instance of miniature golf in the world.

Remembering the Alamo with a full-scale replica of the 1836 city.

The ruins of the "20-year town" lay out among the mountains of Alberta.

An abandoned quicksilver mining town surrounded by the Big Bend parks.

A mysteriously abandoned campsite in San Angelo State Park.

A 90-year-old underground water reservoir offers a more industrial kind of tranquility.

Civil War dumping ground for the bodies of terrorized Union sympathizers.

This 1,500-acre development hopes to be the Central Park of the South.

Famous for its bio-luminescent inhabitants, known as "dismalites."

Curious cave that stays a cool 56 degrees all year long.