All that's left of the quintessential "cabin in the woods."

A 300-yard long natural tunnel runs through a ridge deep in the Appalachian Mountains.

This railroad overpass is said to be home to a murderous goat-man whose very legend has led to very real deaths.

A failed utopian experiment for British expats in the American South is now a Victorian village frozen in time.

Kentucky's longest operating jail is now a spooky spot to spend the night.

Moonbows over Kentucky.

A small poultry graveyard in the courtyard of a popular Key West watering hole.

The island residents are known for taking their quirky sense of humor with them to the grave.

A monument celebrating the idea of reaching inaccessible places.

This statue of one of baseball’s greatest pitchers looks like something out of a sci-fi horror movie.

This taxidermy horse was a Civil War hero.

A line of blue paint marks the route of the inaugural parade.

Amid the sprawling Defense Intelligence Agency Headquarters is one of Washington's least accessible museums.

This unassuming passageway played a key role in one of the most important events in U.S. history.

A diminutive memorial marks the site of a successful assassination by a right-wing death squad in America's capital.

Look closely and you’ll notice that the color changes a third of the way up the tower.

Art deco landmark on the outskirts of Washington, D.C.

This stately mansion, built in 1787 by America's first Secretary of the Navy, is rumored to be one of the most haunted buildings in Washington, DC.

A traveling postal dog covered 48 states and more than 140,000 miles, and he lives on as taxidermy, patched up with a rabbit's foot and a pig's ear.

Four bald cypress trees in Lafayette Square, across from the White House, mark the southern edge of a 100,000 year old cypress swamp.

The hidden offices underneath Memorial Bridge have been locked up since 1976.

You could be standing at the site of one of D.C.'s most fatal tragedies and not even know it.

This leafy estate is worth $18 million and is so grand it has two mailing addresses.

A rotating cast of guys and dolls in front of a Washington, D.C. building.