At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

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

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

The Bucyrus-Erie model 1850B electric shovel, or "Big Brutus," the largest existing electric shovel in the world.

European castle ruins in an American state park are actually the product of death and grief.

Journey up the capitol building's cupola for an amazing view of Topeka.

The surprising home of the iconic Santa Monica Pier Ferris Wheel.

This volcano rises like a giant anthill from the plains below, with a road spiraling up to the rim.