A tunnel with windows, so you don't miss out on the impressive views.

The tragedy of the Japanese internment camps is remembered here by a stark "Soul Consoling Tower."

The vast, legendary catacombs hold secrets much stranger than stacked bones.

An acoustic anomaly with a mysterious cause sits in the heart of Tulsa.

A memorial for public executions that dates back to the 14th century.

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

This replica of the Greek structure is in the heart of Nashville.

The world-record holder for the longest bridge stretching continuously over water.

Eight rare Corvettes are swallowed up by a sinkhole in Kentucky's National Corvette Museum.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

France's most famous cemetery, with some of its most curious tombs.

Las Vegas's very own 40-foot-tall fire-spewing praying mantis.

Only intact Ichthyosaur skeleton in the United States and an abandoned gold mine and ghost town all in one place!

In the middle of a remote desert town is a surprisingly opulent hotel.

This tiny cluster of abandoned buildings looks like the future of the ghost town - today!

A giant open-air sculpture made of over 200 full-sized boats.

Eulogizing an unknown man's unusual demise.

The now-abandoned tunnels were built for the transcontinental railroad on the route where the first wagon train entered California.

This mother-daughter run curiosities shop is a beautifully odd mix of taxidermy and exotic plants.

These once-beautiful historic graveyards are set against the barren Virginia City hills.

This once bustling boomtown hotel is now the hottest spot in Nevada for ghost hunters.

An exotic wildlife habitat right off The Strip.

There's nothing creepier than a cemetery next to a clown motel.