The somber sculptures commemorating Irish Famine on the river Liffey in Dublin.

The 19th-century pharmacy (now a used bookstore) was featured in James Joyce’s "Ulysses," and has changed very little to this day.

The comedy and tragedy of Oscar Wilde is preserved in a Dublin park, captured in a sculpture of colorful stone.

One of Ireland's most infamous prisons for rebels including men, women and children.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

Copenhagen's celebrated theme park and gardens.

A surreal statue honoring Prague's favorite literary son.

Bullet holes in the church wall are a reminder of the violence that followed the assassination of a high-ranking Nazi officer.

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

This spooky statue sits outside a famous Prague theater.

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

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

This automated sculpture of two men peeing will spell out text messages with their micturition.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

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

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

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

Macabre astrological automaton clock dating to the late 1400s.

The abandoned "Red Star Train Graveyard" is the final rusting place for precious artifacts of train history.

A highly-criticized monument in Budapest has become the site of a makeshift Holocaust memorial.

A plaque bearing the names of those who dedicated themselves to protecting Budapest's Jewish population during World War II.

This easily overlooked memorial immortalizes the scars from the 1956 Hungarian Revolution.

The metal leaves on this tree are engraved with the names of Holocaust victims.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.