A scandalous Art Nouveau collaboration that set Paris all atwitter at the turn of the century.

In the best of all possible worlds, everyone will get a chance to see this statue in which Voltaire's heart is interred.

A Belle Epoque bordello turned into a themed love hotel.

Inside a former cabaret, seven floors of erotic art.

Egyptian Revival movie palace abandoned for decades and restored in 2013.

Saintly bones pressed into a wax effigy of a Catholic superstar.

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

The recovered bones of martyrs slaughtered during The Terror are on display in this church crypt.

Statue of death tucked in the University of Medicine courtyard.

A surrealist timepiece by the artist of melting clocks.

A font of vintage porn on the silver screen.

A museum on the history of Paris, including a set of Napoleon's toiletries, Proust's room, and relics of the Revolution.

England's oldest surviving hedge maze has been confusing visitors for over 300 years.

Shakespeare, David Bowie, Dr. Who, the Saxons, Druids and Romans are all claimed to have all made their mark on these massive man made tunnels.

A historic arboretum and non-conformist, non-denominational park cemetery.

Winding paths and ramshackle mausoleums in the oldest "park cemetery" in London.

A historic London cemetery now serves as a nature park incorporating gravestones & memorial statues.

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

Catacombs turned marketplace.

A special shop catering to the needs of things that go bump in the night, and also helps kids become writers.

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

This South London cemetery holds the remains of more than 15,000 people.

This landmark church concealed a crypt packed with bones that was discovered thanks to the London Blitz.

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