The sixth of London's "Magnificent Seven" cemeteries, and a source of unlikely inspiration to Beatrix Potter.

Catacombs turned marketplace.

Repository for more than 22 million pickled specimens.

Eighty million natural history specimens call this gargantuan museum home.

Pop culture has helped to keep this iconic British building from being destroyed.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

One of the world's largest collections of pathological specimens.

This churchyard arbor is surrounded by hundreds of gravestones placed there by author Thomas Hardy.

Rebuilt remains of a temple to Roman god Mithras.

Hear the quietest sound from across the dome.

A collection dedicated to the treatment of disease, held in London's oldest hospital.

The only university zoological museum in London houses extinct animals, bizarre natural history specimens, and a Micrarium of microscopic creatures.

An unusual round church in London with a Templar past.

The anatomical-pathological collection of a man who changed surgery.

These quaint French houses dangle precariously over a precipice.

This French anatomy museum greets guests with a skinless man, mid-shovel.

A small town hallucinates en masse - Bad bread, or CIA science project?

Sculpture of a legendary French dragon.

A unique underground structure dating back to the 1st century BC.

Walk through living pictures and music in the Cathedral of Images.

Even France's favorite aquatic son Jacques Cousteau, couldn't get to the bottom of it.

One of the largest ochre quarries in the world, hidden in a limestone landscape.

These medieval ruins have survived since the 12th century, even providing shelter from the Nazis.

A public park off the beaten path with a beautiful waterfall and 13th century Cistercian abbey.