This bridge was constructed from the rubble of the infamous Bastille.

What happens when a sculptor has to find a way around a 100-year-old copyright.

The video game-themed street art first popped up in the French city.

This demon atop the Notre-Dame de Paris looks utterly bored.

Order a boozy baba au rhum at the oldest patisserie in Paris.

This former “ante-chamber to the guillotine” has been refurbished to illustrate the brutal history of French justice.

A museum on the history of Paris, including a set of Napoleon's toiletries, Proust's room, and relics of the Revolution.

The history of radiation is on safe display at the foot of a radiation science laboratory.

Paris' linguistic guide to the international language of, yes, love.

Notorious artist squat renovated into legal studios.

This modest plaza in Moneygall, Ireland has cashed in on its distant connection to the U.S. president.

This short bridge is the only thing connecting a tiny Irish island to the mainland.

Northern Ireland's Brobdingnagian stepping stones.

The atmospheric road was never meant to be so creepy.

A church that bred legends, and served as an inspiration for the Da Vinci Code.

Vienna's diversity-themed traffic lights were inspired by the Eurovision Song Contest.

The castle still holds traces of the abandoned Roman fort it was built atop.

An enigmatic monument to the Irish revolutionary who plotted an uprising against British rule.

The large fjord lake is thought to be the home of "Ogopogo," a giant sea serpent.

Follow the original medieval paths that wind through this intriguing section of the city.

A Victorian Gothic masterpiece housing a world-class collection of rare books and manuscripts.

Legend says this sacred tree was a gift from goddess Athena.

As one of the world's largest hydroelectric dams this plant took two countries to get built.

A series of waterfalls so massive they straddle the border of Argentina and Brazil.