These barriers stand as stark reminders of Northern Ireland's troubled past.

This Victorian-era public house has set the standard for pub-style elegance for over a hundred years.

These murals stand as reminders to the troubled history of this Northern Ireland city.

Dedicated to the "father of modern education," this museum documents the history of education in Czechia.

A Baroque mansion with ties to legendary magicians and alchemists.

A plaque marks the spot where the saint was shoved off the Charles Bridge and into the river.

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

One of the famous Czech artist's lesser-known Prague installations appears to be a glowing fetus affixed to a drainpipe.

A saintly relic hidden in a Prague church basement.

A historic and beautiful Art Nouveau chamber in a historic railway station.

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

A mocking tribute to the past and modern leadership of Prague.

Street artists transformed an abandoned air vent into the beloved Star Wars robot.

This bar and museum are devoted to the controversial comic book work of Kája Saudek.

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

What looks like a suicide in progress is actually a statue of Sigmund Freud.

A grumpy old water goblin guarding an old mill on the Devil’s Stream in Prague.

The rusted creatures wait to be discovered in Prague's botanical garden.

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

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

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

The relics are stored in a silver reliquary, where they can be seen through glass.

An old asylum graveyard that's been abandoned for half a century attracts those seeking a dark thrill.

The largest and best-preserved rotunda in Prague.