Asthmatic Charles Hyett's son built a fantastical garden for his father to convalesce in, alas it was too late.

This medieval sanctuary's tree-framed door looks like a portal to a mythical realm.

These remarkable cascades are the jewels of Upper Tees.

A modern English garden of eccentric beasts, follies, and oddities.

A little-known ruin with a convoluted history and a fascinating latrine drainage system.

A series of abstract, silly sculptures represent the works of a great modern classical composer.

Exquisite wall sculptures carved in secret by an early quarryman in an obscure corner of the Paris Catacombs.

Down a cobblestone alleyway is a museum dedicated to Romanticism, with a secret garden.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

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

19th century pendulum and a clock restored by a rogue group of guerilla artists.

France's national museum of scientific and industrial instruments.

This museum houses an imposing skeleton army comprised of creatures great and small.

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

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

The little tuxedo cat survived the trip, then languished in obscurity.

Explore this medieval cathedral by trying to spot all the malevolent monsters hiding in its beautifully colored windows.

Visitors dating back to the 1600s carved their marks in the stones of the iconic tower.

This 14th century wine cellar is home to the oldest barrel-stored wine in the world.

There has been an astronomical clock on this spot since the 14th century.

This secret cemetery where no flag is allowed to fly holds the bodies of American soldiers convicted of heinous crimes during WWII.

Hundreds of dwarf beeches create an unusual, haunting forest in the north of France.

A famed artist's inspiring work of peace and tolerance.

Residing along a busy thoroughfare, this sculpture urges passersby to consider the future.