Ride the subways of yesteryear.

This century-old grotesque has a mysterious history and may not actually be a rabbit.

A favorite Paris bar for U.S. expats, including Gershwin, Hemingway, and James Bond.

How did a French journalist’s grave become the sexiest statue in the cemetery?

A lone cannonball remains lodged in the walls of the Hotel de Sens as a sober reminder of a revolution.

A Parisian exterminator's shop whose storefront displays stuffed rats hanging from traps.

"In the Dark" Restaurant in Paris offers dinner in complete darkness.

Paris' linguistic guide to the international language of, yes, love.

The very center of Paris is surrounded by a bevy of strange good luck rituals.

A mechanized clock where a man fights off a dragon, crab, and rooster.

A museum of magic with a Sadist past.

The oldest stone house in Paris was built by its most famous alchemist.

One of the oldest medical collections in Europe focusing on rare surgical instruments.

Notorious artist squat renovated into legal studios.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

Some of the saint's blood and bones are said to reside in Dublin.

The somber sculptures commemorating Irish Famine on the river Liffey in Dublin.

This permanent collection of preserved bodies taken from Irish bogs is one of the leading authorities on such morbid mummies.

One of Ireland's most infamous prisons for rebels including men, women and children.

A devastating booze inferno poured through the streets, claiming several victims who drank it.

This courtly monument celebrates an influential comedian who turned taking the piss out of the powers-that-be into an art.

The comedy and tragedy of Oscar Wilde is preserved in a Dublin park, captured in a sculpture of colorful stone.

An Irish church where an 800-year-old mummy is reaching out of his coffin as if to shake hands.

The mummified heart of a saint lives on in this church—after a brief hiatus when it was stolen.