A toxic ghost town sitting atop a massive coal fire.

A mine fire has been burning under the deserted town since 1962, but this church is still going strong.

These hooded graves are the only of their kind in the United States.

Construction uncovered this trove of fossils, which visitors are welcome to add to their own collections.

Over 100 concrete munitions bunkers are all that remain of a Pennsylvanian village seized by the US government.

Abandoned Italianate architecture on the coast of Maine.

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

The world's only and thus largest collection of its kind celebrates everyday wonder through simple umbrella sheaths.

Accessible only by boat, this centuries-old island fort never saw troops or combat.

Atlanta's strange assortment of concrete pillars inspires reflection in some, confusion in others.

Unruly residents were housed in this one-person cell until the Black Maria arrived.

Once the primary source of ice in this region during the mid-20th century.

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

A local landmark with generations of spraypainted messages, and more being added each day.

A Grand Dame of the vaudeville circuit restored to its former glory.

A striking lighthouse with views of the Gulf of Mexico and of a military air show.

This now-deactivated naval base defended the Florida coast for centuries.

One of the only Florida forts to remain in the hands of the Union all through the Civil War still stands as a historic stronghold.

The "worst battleship ever built" is enjoying a grand second act, submerged 30 feet in the Gulf of Mexico.

Pickles belong on pizza and this freewheeling outpost proves it.

Just off the road outside Baguio, a gigantic lion's head carved into a mountain greets those driving by.

This eerie abandoned building with a dark history is said to be one of the most haunted places in the Philippines.

Some locals believe the fabled lost gold of General Yamashida is hiding somewhere beneath the city.

Smoked mummies housed in mountainside caves.