The palatial McDonald's that inspired Wesley Willis.

Underwater art project will double as a massive artificial coral reef to help regenerate the damaged ecosystem.

Notorious artist squat renovated into legal studios.

Curious cave that stays a cool 56 degrees all year long.

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

Narrowest house in Boston.

The magic's in the hole!

Final resting place of one of the classic authors of horror literature.

Last residence of H.P. Lovecraft featured in his story "The Haunter of the Dark."

A former waterfront market is now in the center of town due to some interesting Boston engineering.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

Moonbows over Kentucky.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

The final resting place of New Orleans' most famous voodoo priestess.

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

Less a museum than a bizarre fantasy world created by artists and engineers.

A historic house in St. Louis was plagued by a series of suicides committed by family members involved in a successful brewery.

Three courses accompanied by Christian rock.

The farm where one of America's greatest leaders was raised is now a well-appointed landmark.

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

One of the few surviving "Wigwam"-themed motels.

The world's longest known cave system.

Prehistoric animals decorate this popular outdoor park.