The world's longest known cave system.

An impressive collection is dedicated to the legendary beast.

An eerie site of reverence for those who have completed an epic journey.

This 880-acre facility is home to a massive collection of vintage motorcycles and cars, as well as a 2.38-mile race course.

Its eclectic exhibits range from the world’s first motorcycle to Luke Skywalker’s Land Speeder.

You have to love a museum with a truly dedicated focus. A focus on Superman, for example.

In the Shawnee National Forest, amazing rock formations peer through the treeline.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

A remnant of the last Ice Age, this lake is surrounded by fascinating rock formations.

A unique botanical garden housed in three giant geodesic domes.

According to the legend, this strikingly beautiful hill has miraculous healing powers.

The world’s largest truck stop includes a barber shop, chiropractor, and a huge museum with antique trucks.

When ecosystems collide in the arid Southwest.

Once a gas station, this flightless airplane beside the Old Dixie Highway now houses a barbershop.

The world's largest floating loon bobs in the lake to kick off an annual festival.

This picturesque cliffside beacon no longer calls to sailors but shines once a year in honor of a famous shipwreck.

Cambria's most unique B&B features creative surroundings and fantastic food.

The state bird of New Mexico, constructed entirely out of garbage.

This is one really big nut.

This Boeing KC-97 tanker is now a restaurant for aviation lovers.

Air Force Academy Chapel made of 100 identical tetrahedrons works to inspire those of all religions.

While most of the games in this arcade take quarters, that would have been a small fortune when they were made.

This spectacular track has run continuously since 1882.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.