A museum commemorating the Donora Smog, which killed 20 people in October 1948 and sparked national outrage over air pollution.

This abandoned dream castle and its cemetery look out over the city that once inspired their creation.

One of the oldest surviving bars in the United States, located at the site of the last skirmish of the American Revolution.

Step into a pastel time capsule where candy is truly dandy.

The remnants of a wooden-hulled fleet built and abandoned in WWI, now home to a thriving ecosystem.

An eerie, abandoned military base engulfed by nature and graffiti is now home to a local park.

An eerie, decaying ghost town destined to fade into the forest.

A local farm's collection of unusual structures from a now defunct storybook amusement park.

A storefront museum in Asbury Park honoring the Jersey Shore’s deep history of mystery—including the Jersey Devil.

You might know it as the Overlook Hotel, but the inside is not going to be familiar.

This Boy Scout retreat acted as "Friday the 13th"'s original Camp Crystal Lake.

A former hospital is now home to a pizza parlor and maybe a few ghosts.

Eyam took steps to quarantine themselves and keep the plague from spreading.

A pair of large white marble lions guard this stretch of the Mojave Desert, and it is utterly mysterious how they got there.

A hotel and restaurant serving as the mecca of kitsch.

An island filled with hundreds of hanging, decomposing, decapitated dolls.

Decor at “Nevada’s Oldest Thirst Parlor” includes Raquel Welch's brassiere hanging from a stuffed moose head.

A glorious pub known for a spiteful printing feud and its famous typeface lost—then found—at the bottom of the Thames.

Remarkable medieval wall paintings decorate this 12th-century, dog-friendly church.

The first American department store, and home to the largest operating musical instrument in the world.

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

Washington's iconic carousel has a nice piece of Civil Rights history.

This grave marks the passing of a historic Jane Doe whose identity remains a mystery to this day.

A historic cemetery with unique artwork, a Civil War fort, and also happens to be the site of the Battle of Bladensburg.