Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

The Grand Canyon of Texas.

The folks at the Devil's Rope Museum want you to get hooked on barbed wire history.

Collection of skeletal systems from the "world's leading supplier of osteological specimens."

Nature's biggest mammal swims in landlocked Oklahoma.

Very likely the only museum in the world that celebrates the glory of the humble banjo.

An acoustic anomaly with a mysterious cause.

Tucked away on an empty wooded lot in suburban Oklahoma City lie the remnants of an abandoned circus camp.

Travel through the hidden underbelly of the city in colorful tunnels filled with art and history exhibits.

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

An abandoned relic of the city's failed experiment with below ground transit.

Deep scars on the earth left by the Ice Age.

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

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

These sub-farmland caves are home to a majestic stalactite known as the "Crystal King."

It took more than 20 years and a sharp eye for one man to assemble this quirky collection.

These beautiful wineries were at the center of Lake Erie's "grape belt" back when the Midwest dominated American wine production.

Now in disrepair, this 19th century station was a stop on of the famed B&O Railroad.

In northern Ohio, the glorious past of America's trains is on full display.

Rare recess caves fill this unbelievably beautiful Ohio park.

One of the few places where you can explore a 1918 paddlewheel steamboat from stem to stern.

A throwback train ride transports passengers through one of the lesser-known national parks in the country.

The site of the worst mining disaster in Ohio's history.