The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

The studio of Catalonia's most famous theatrical designer remains exactly as he left it.

This Funeral Hearse Museum represents the finest in cadaver transportation.

A temple to modernity, tucked away amid Barcelona's more well known museums.

Bask in the 19th century grandeur of an eccentric Freemason millionaire's private gardens.

Mountain where Jesus was first tempted by the Devil.

This cemetery features modernist statues as strange as its name.

This semi-secret storybook hedge maze is also the oldest garden in the city.

The topiary maze at the Habsburg hunting lodge.

This former insane asylum now holds a pathological anatomy museum.

A Portuguese Jewish cemetery filled with stunning grave monuments that date back to 1614.

An overgrown and largely forgotten cemetery lies hidden within the outskirts of Amsterdam.

A rare tour of an aristocrat's private home reveals valuable 17th-century paintings from artists like Rembrandt.

Two awe-inspiring globes from the reign of the Sun King hang from the ceiling of France's national library.

The final resting place of a German diplomat's beloved companion.

Hackney's newest private museum and natural curiosity shop.

This marine reptile was discovered by one of the 19th century's greatest fossil hunters.

This small chapel is built of human bones and decorated with a golden skeleton.

A Spanish forest is filled with mysterious stone carvings.

World's largest cave was only discovered in 1991, and now offers tours to the public.

Hidden away in a modern library are the remains of one of the 18th century's most celebrated wunderkammers.

A majestic lion statue guards this Parisian botanical garden, and feeds on an unsettling item.

Paris' fabled purveyor of exotic taxidermy and natural history curios.