Places ckoohle Wants to Go

Longest canal tunnel in the world, abandoned in the 1960s.

A crumbling island fortress that seems to be covered in a field of stone crosses but is simply incomplete.

This modern museum of Mediterranean culture is surrounded by a surreal concrete honeycomb.

This historic island prison holds one of the dungeons from the Count of Monte Cristo even though it is a work of fiction.

100-windowed castle turned art gallery, built by one dedicated mason.

There is a strange little carving of a person seemingly crushed by a pillar behind the remains of St. Thomas Aquinas.

This Bordeaux parking garage has 712 indoor spaces, and one outdoor.

Lady Liberty's original designer installed a little clone in this French fountain.

The world's largest reflecting pool is just two centimeters deep.

His "Lionheart" is entombed separately from the rest of his body.

Sacked by Vikings, blessed by William the Conqueror, dealt a fatal blow during the French Revolution—these ruins have seen it all.

An ancient ossuary in Rouen.

One of England's most famous churches hides a pair of little known architectural treasures.

This skewed English house has looked like it's going to fall over for centuries.

Five million people are laid to rest here, more than the population of Madrid itself.

The remains of the second-oldest zoo in Europe can be seen within these library gardens.

Among the oldest structures in Madrid, these Moorish walls once guarded the medieval city of Mayrit.

A unique exhibit lets blind people experience famous works of art and architecture with their hands.

Part of the medieval watchtower is displayed in an otherwise ordinary parking garage.

The lengthy skeleton of one of the tallest Spaniards of all time is on display in Madrid.

Stuck in the middle of a modern Madrid city block are the remains of a 19th century sports complex.

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

Earth's rocky history has rarely glittered so brightly as it does in this Spanish museum.

This amazing abuela became a diehard metal fan late in life and an icon of Madrid's '80s rock scene.