Walk through Czech history in Prague's largest graveyard.

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

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

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

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

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

A surreal statue honoring Prague's favorite literary son.

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

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

Macabre astrological automaton clock dating to the late 1400s.

The medieval "Bearded Man" relief still serves as a clever flood warning marker.

This walkway is so narrow it needs its own light to stop pedestrian traffic jams.

The grounds and buildings of an old wood pulp mill have been transformed into an innovative art park and museum.

Thousands of miniature bronze sculptures have taken over this city square creating a unique art installation.

In downtown Oslo, a menacing and terrifying relief clings to a church wall.

Swedish mice can dine at the Nuts of Life restaurant or take a date to the amousement park.

Sacked by Vikings, blessed by William the Conqueror, dealt a fatal blow during the French Revolution—these ruins have seen it all.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

Stay in your own little bubble.

A mechanized clock where a man fights off a dragon, crab, and rooster.

Walk upon the mementos of the dead in this Parisian courtyard paved with medieval tombstones.