Baroque celebration of the end of the Great Plague of Vienna.

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

The modern birthplace of Irish freedom.

The mummified heart of a saint lives on in this church—after a brief hiatus when it was stolen.

A devastating booze inferno poured through the streets, claiming several victims who drank it.

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

This strange bovine gargoyle is said to have been put in as a passive aggressive form of revenge.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

The famous sculptor left his mark on this Italian wall in an internationally protected example of street art.

The largest bell in the world has been swinging high above a Cologne cathedral for almost a century.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

Cold war icon and onetime "hole" in the iron curtain.

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

Super-heavy Nazi architectural experiment.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

This Slovakian statue of an emerging sewer worker might just be a bronze peeping tom.

This Slovak bridge is known both for its connection to a national uprising and its UFO-shaped eatery.

Golden cobblestones remember a time when this small alley was used to avoid having to give a Nazi salute.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

The footprint of a frustrated devil in Munich's Cathedral.

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

A saintly relic hidden in a Prague church basement.

Steadily reminding Czechia of its past.