Crumbling Kennedys and a decaying Tecumseh are just some of the haunting remains of one man's cement art trail.

One street divides a single town that stands in two U.S. states.

Railroad came. People came. Railroad left. Town died.

Over a dozen Native American earth mounds dating back over 2,000 years dot this Tennessee archaeological park.

Twenty-year effort to raise a castle using tools and techniques from the 13th century is now abandoned in the Arkansas woods.

This one-room schoolhouse in rural Arkansas dates to the 1920s, but looks like it could be the 1820s.

An ever-growing collection of rare and strange objects owned by local Arkansas illusionist Maxwell Blade.

The final remnant of the Arkansas zinc industry is this historically protected ghost town.

A floating museum that was sunk by a flood and left to rot in the tides.

Eclectic collections, artwork, and some feline friends fill the writer's former home.

Despite being pillaged and destroyed a number over times down the centuries, this historic church still sort of stands.

The second-largest Jewish temple in Bulgaria was deserted after World War II, seized by the communist government and then abandoned again.

This 14th century castle withstood years of battle but is now sliding off the hills into the Danube.

A Roman monument to their own civil engineering prowess.

This fairy-tale castle would make Dracula (who is said to have been imprisoned there) jealous.

Religious structure known for its sculpted details.

The legendary cliffside castle of three-time Voivode of Wallachia, Vlad the Impaler.

This Romanian village may have been drowned, but it is long from forgotten.

The ghost town where the villagers refuse to leave.

A Franco-era dam flooded (almost) everyone out of this centuries-old Aragonese town.

Once an indicator of social class, the color blue has come to define this city on the edge of the Thar Desert.

An abandoned aircraft sits submerged in a lake in the Alaska wilderness.

This WWII-era military installation once held an entire city within its walls - now, its walls are falling down.

Colorful boxes placed over the dead are left to rot and crumble.