The Byzantine, pre-Columbian, and medieval art at this stately mansion are some of the most under-appreciated collections in D.C.

One of many gator theme parks, abandoned in the sugar fields of South Florida.

The entrance to this sinisterly named tunnel hides behind a Tim Hortons.

An unoccupied lighthouse encased in layers of ice from the waters of Lake Erie.

The only remnant of a small mining town is an abandoned railroad tunnel that is steeped in ghostly lore.

Take a drunken tour inside the world's largest known geode.

An abandoned railroad tunnel forgotten by time awaits inquisitive hikers.

This 13-foot smiling peanut in Georgia helped Jimmy Carter win the 1976 presidential election.

They call this long foot bridge a swinging bridge, but really it's the bouncing you have to watch out for.

One of the largest-ever mental hospitals now sits abandoned, surrounded by 25,000 unmarked graves.

Bad farming practices caused this unnatural natural wonder.

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

A mysterious monument meant to be a guide into "an Age of Reason" was destroyed after an apparent bombing.

This museum gives tribute to the underappreciated "Down-South Submarine."

North America's oldest authentic African Village.

According to local lore, this narrow passageway through two large rocks was accidentally created by the devil himself.

"Not too many people can say they've had a nuclear bomb dropped on them, not too many would want to." — Walter Gregg.

It should come as no surprise that the best view of the Hollywood sign is from Batman's lair.

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.

Statue of Lenin, from Cold War era Czechoslovakia, now in a neighborhood of Seattle.

The final resting place of one of the most sensational guitar players of all time was created only after his father got the rights to his music.

A sliver of nostalgia in Seattle's Viretta Park.

The first park built over a freeway is a brutalist masterwork.

Twin Peaks' real life Double R Diner has been restored to its damn fine television look.