Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

Notorious artist squat renovated into legal studios.

France's most famous cemetery, with some of its most curious tombs.

According to a gruesome legend, an architect sacrificed his wife to build this spectacular, 16th-century cathedral.

Climbing to the top of the cathedral's bell tower offers sweeping views of these medieval ruins.

An unusual number plate signifies the building's saucy past.

A scandalous Art Nouveau collaboration that set Paris all atwitter at the turn of the 20th century.

A tribute shrine where the Space Invasion street art movement started.

A phantasmagoric tomb honors a Belgian artist-scientist's contributions to the world of spooky entertainment.

This oddly shaped boulder in Paris is rumored to be cursed.

Something's watching you.

The ancient Greek Titan guards this massive dam holding a lightning bolt to symbolize electricity.

A once-fairy tale mansion now stands in a state of disrepair.

The world's northernmost aquarium looks like it has fallen over.

The great polar explorer is remembered in this far northern town, where he embarked on his final expedition.

This functioning parish church is also the site of many concert performances due to its wonderful acoustics.

The world's most charming instant portrait studio also happens to be its smallest.

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

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

A surrealist timepiece by the artist of melting clocks.

How did a French journalist’s grave become the sexiest statue in the cemetery?

One of Jeff Koons’s largest sculptures and his first commemorative work.

A 400-year-old church covered floor to ceiling in ex-voto offerings from the faithful.