This fast-food outlet is the only space and UFO-themed McDonalds in the world.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

Chilly air billows out from the entrance of an abandoned mine on a steep hillside, providing a refuge for Ice Age fauna and flora.

This small, unassuming street is now a canvas for color and creativity.

This tiny 19th-century tunnel was built so a man could move his cows from one field to another.

When Motown musicians came to Nashville in the 1960s they stayed at this historic record-pressing company because hotels wouldn't host them.

This funicular railway rumbles along for a mile up the nearly vertical face of Chattanooga’s Lookout Mountain.