The enchanting archway is the only surviving portal into Dublin's lost medieval wall.

A fortified palace in the shape of a ship on the Thiou river.

The inverted pyramid design of this station stands out amid Bratislava's urban landscape.

Dedicated to a synagogue that was destroyed after having survived World War II.

The site is dedicated to an investigative journalist whose murder triggered a political uproar that changed Slovakia forever.

The hidden lair of an alchemist rediscovered in a 2002 flood.

This artificial cave looks like something out of a fairytale.

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

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

Inside this Krakow church, an explosion of psychedelic color.

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

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

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

A 300-kilogram egg sculpture that embodied a neighborhood revival.

Things aren't quite what they seem at this mind-bending museum.

A miraculous three-handed portrait of a saint can be found inside this church.

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

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

Plaques celebrating Lithuanian writers freckle a wall of this picture-perfect path.

While this monument tile is shrouded in mystery it also marks the end of the longest ever human chain.

Walk along the medieval fortifications that have been protecting Tallinn since the 14th century.

Estonia's largest creative city is a vibrant bohemian hub located within a former industrial complex.

A unique sculpture calls the outside of this steakhouse home.

This church also serves as a lighthouse complete with a beacon.