The oldest monument in Marrakesh and the city's only surviving example of Almoravid architecture.

Dublin's most modern, visually spectacular bridge is modeled after Ireland's national emblem.

The house where the writer spent his formative years.

A statue in the center of Dublin dedicated to one of their favorite sons of rock & roll.

Experience what life was like in Ireland during the Viking and medieval ages.

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."

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

An old hill fort covered in over 100,000 crosses is a symbol of Lithuanian nationalism and beliefs.

This enormous 32-foot painting depicts Poland's greatest medieval battle in glorious detail.

This symbol of Polish heritage survived the occupation during World War II, hidden in plain sight.

In the center of Wrocław's old meat market stands a somber tribute to the city's livestock.

A merchant court dedicated to the fictitious King Arthur is heavily adorned with bizarre Renaissance art.

A fairytale Gothic castle steeped in Nazi treasure conspiracy theories.

The former Nazi concentration camp stands as a museum to remember this dark chapter in European history.

An underground city of salt.

Legend has it that Napoleon Bonaparte fell in love with this Gothic church.

Travelers who fall victim to this mermaid's charms are destined to stay in Užupis forever.

This micro-nation may be some sort of prank, but its constitution sure seems official.

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

Extremely famous in his native country, this Cracovian painter is all but unknown beyond Polish borders.

An artificial hill and apparent calendric structure built in the Early Middle Ages immortalizes a legendary Polish princess.

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

This man-made mound monument was built out of soil from all across the Polish empire.

Poland's oldest surviving university building holds a wealth of historic science instruments including some used by Copernicus.