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

The oldest stone house in Paris was built by its most famous alchemist.

This massive library holds what was once the largest book collection in the world.

A mechanized clock where a man fights off a dragon, crab, and rooster.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

This stunning concert hall has become a symbol of Iceland's national recovery.

This eye-popping Icelandic crater lake is surrounded by red volcanic rock.

A sulfuric martian landscape that looks far better than it smells.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

This beautiful, historic church looks like something out of a simpler past.

This valley of hot springs and boiling mud pots is home to the record-holding "Geysir," which originated the English word.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

These fantastically named natural pools look like something out of a Scottish myth.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

A 18th century graveyard and its astonishing cortege of macabre iconography.

One of the oldest scientific gardens in Britain, containing more than 13,302 plant species in its core collection.

This stately monument has been wearing a traffic cone hat for decades much to the delight of the locals.

This Scottish museum is the only one in the world to focus not on one religion but all of them.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

A 200-year-old collection of oddities and medical paraphernalia.

The heads of two giant mythological water horses honor Scotland's horselord past.

Old-fashioned knowledge and modern engineering create the world's only rotating boatlift.