A floating cat sanctuary on an Amsterdam canal.

A curious collection dedicated to human and animal anatomy and pathology.

Museum preserving torture methods from the past.

This German bone house contains the remains of some 20,000 souls.

These blingy, baubled skeletons lie in glass boxes inside a baroque Bavarian church.

A church filled with the bones of hundreds of virgins martyrs—or so they say.

"The most colorful grottoes of the world.

An intricate and amazing house built by architect Karl Junker.

Skeletons dressed in extravagant 18th century royal costumes cavort in the aisles of this German basilica.

A wunderkammer of mysterious objects and stories.

The most visited, and possibly most controversial, museum in Germany.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

The largest madrasa in Morocco once housed more than 900 students within its exquisite walls.

This amazing oasis of art and plants is hidden on the outskirts of Marrakesh.

Fortune tellers, snake charmers, poets, and storytellers all gather on this historic square in Morocco.

Rocky Atlantic beach home to a stunning stone arch.

The remains of a magnificent medieval fortress that was the capital of a vast empire.

One of the most well-preserved temples of ancient Egypt.

Contains some of the world's more disturbing wax anatomical models.

The Neapolitan Cult of the Dead still cares for the skulls at this mini-Fontanelle.

This curious building hides eclectic details like medieval gargoyles alongside naked angels and Art Nouveau mosaics.

Stumbling upon this whimsical wooded garden is like stepping into an enchanted forest full of philosophical musings.

The mystic whose incorrupt corpse still attracts the faithful.

A factory director designed what was the world's longest suspension footbridge in 1923 so his employees could get to work safely.