A tunnel dug through the side of a mountain by hand provides convenient yet death-defying access to a small village in China.

This eccentric cave dwelling is bizarre even by the standards of a subterranean town.

An opal mining town in the middle of Australia where people live, worship, and shop underground.

Perched on a spindly rock spire in a Greek archipelago, this lighthouse would make a perfect wizard's tower.

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

A terrific purveyor of natural history objects and curios.

This once luxurious Catskills resort is now a haunting ruin.

Some of the earliest burial grounds of New York State are to be found hidden away in this quaint town.

This beautiful system of tunnels built into natural rock serves as a centuries old plumbing system.

This Funeral Hearse Museum represents the finest in cadaver transportation.

This cemetery features modernist statues as strange as its name.

A three-shelf library serves as a memorial in the Jewish cemetery of Krems.

A 50-foot-tall statue of Jesus where a stairway transports the faithful into his body.

The oldest stone house in Paris was built by its most famous alchemist.

A prohibition-style speakeasy takes up residence in the last Victorian residence in Hollywood.

Gift shop offering toe tags and chalk body beach towels tucked into a coroner's office.

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.

The largest medical and anatomical collection in France lies hidden from the public.