Thousands of coffin-like pillars make up this controversial Holocaust memorial.

A haunting contrast of trains that both saved and took the lives of Jewish children in Nazi Germany.

For more than 170 years, this family-run bakery has been serving Berlin’s best Baumkuchen, or “tree cake.”

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

Tiny memorials honor individual victims of the Holocaust.

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

A collection of modern and vintage pinball machines housed in the cellar of a 15th-century building.

Inside this Krakow church, an explosion of psychedelic color.

This grubby wall is said to be one of the Earth's esoteric energy centers.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

This Polish cave has housed a dragon, a brothel, and an enduring legend.

Real bones which are said to have belonged to a Polish dragon.

Beneath Kraków Old Town's main square lies a hologram-filled medieval market vampire graveyard wonderland.

Designed to commemorate the king's coronation.

Fantastic stainless steel dragon gates complete with mesh wings.

This supermarket offers shoppers a window into the past alongside their groceries.

Catholics make up 84% of Ireland's population but this Dublin museum remembers the small but important Jewish community.

The modern birthplace of Irish freedom.

Amidst the bustling streets of Dublin, there is a hushed garden that is dedicated to "All those who gave their lives in the cause of Irish Freedom."

This is the largest cemetery in Ireland and the first cemetery museum in the world.

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

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.

A brutalist gem towering over the heart of Milan.