Walk through Czech history in Prague's largest graveyard.

Countless grotesque faces stare out from this eerie Prague art wall.

A Jenga-style cylindrical tower of books that appears to go on forever.

Macabre astrological automaton clock dating to the late 1400s.

A church of bones, decorated with 40,000 human skeletons.

Two stunning 17th-century libraries and a cabinet of curiosities.

The remains of a 1st-century aristocratic Roman town house featuring beautiful well-preserved mosaics.

Overshadowed by other, more famous Maltese catacombs, this ancient burial chamber has one of the best examples of a ritual agape table.

Burial grounds for more than 1,000 bodies deep under the modern town of Rabat.

The original movie set for the home of 'Star Wars' hero Luke Skywalker.

An abandoned film set location for a remote spaceport in a galaxy far, far away hides in the Tunisian desert.

A 15th-century granary that played the role of futuristic slave quarters in the world of 'Star Wars.'

Buildings from the fictional planet of Tatooine still litter the Tunisian desert.

A seemingly simple canyon that was the backdrop to a number of famous movies.

The original film set of Luke Skywalker's Tatooine home from the 'Star Wars' trilogy.

Made famous by 'Star Wars,' these troglodyte homes face an uncertain future.

An underground city of salt.

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

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

A medieval weapon rumored to have been used by the brilliant poet himself.

This museum is rotten with a century of wax medical deformities.

The largest and most famous wax anatomical collection anywhere in the world.

Over 50 exquisite hand-painted Renaissance maps decorate a Medici storage room.

This small group of sand dunes manages to pack in a strange rainbow of colors.