A heartwarming message to those entering and departing Music City from above.

This bleach-white graveyard overlooking the ocean is accessed through a tunnel.

This former sugarcane transport tunnel is now a portal to a lovely beach.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

Legends of treasure and spirits flow from this this fairy tale-like oasis.

This ghostly Alaska village still clings to a steep cliffside despite having been abandoned for over 50 years.

Breathtakingly blue walls shimmer inside the "Glacier Behind the Town."

This “peasant café” in the middle of Tokyo re-creates the atmosphere of the Japanese countryside.

Sloth rehabilitation center in the jungle of Costa Rica.

This Costa Rican topiary park is a surreal garden of unearthly delights.

World's first "penitentiary," meant to be humane, drove men insane.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

A 400-year-old mummified arm dangles from the ceiling of St. James the Greater, serving as a warning to thieves.

A set of ancient drawings in the desert of Peru that are so massive, many of them can only be fully seen from the sky.

Keshwa chaca, among the last handwoven Incan bridges, crosses Apurimac Canyon in Peru.