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

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

This doorless 20th-century elevator doesn't stop or slow down.

The first museum in the world devoted to sexual gadgetry.

This spooky statue sits outside a famous Prague theater.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

A turn of the century building boasting some of the most beautiful art nouveau architecture in Prague.

Throughout this shopping mall are medieval ruins that were discovered during the mall's construction.

Macabre astrological automaton clock dating to the late 1400s.

A significant example of Czech cubist architecture—a style you won't find anywhere else in the world.

Synagogue built from the stones of Solomon's temple contains the golem of Prague.

The slender brass strip in Prague's Old Town Square was used to tell time from 1652 to 1918.

An existential riddle in the world's largest ancient castle.

A surreal statue honoring Prague's favorite literary son.

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

The hidden lair of an alchemist rediscovered in a 2002 flood.

Suspended above the ground in a thicket of towering Georgia trees is a modern architectural wonder.

This old school, eccentric, and independent video rental store refuses to die.

The first singer to cut a country music record is buried in a small graveyard in Atlanta, Georgia.

Unruly residents were housed in this one-person cell until the Black Maria arrived.

Proceeds from this colorful teahouse in a historic Atlanta neighborhood directly fund women’s education in northeast India.

An oddity shop filled with taxidermy, funerary memorabilia, and more.

An old bank vault in Atlanta is now the eternal shrine to the King of Rock and Roll.

One of Antoni Gaudí's least-visited works, an homage to Catalan patrimony that mixes neo-Gothic with Modernista forms.