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

Dedicated to the art of hunting, with juxtapositions of contemporary art.

France's national museum of scientific and industrial instruments.

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

The first statue to be added to Saint Peter's Square in over 350 years is an ode to migrants and refugees around the world.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

A sculpture serving as an homage to Pope John Paul II.

Legend has it that this bronze orb, which sat atop an ancient Egyptian obelisk, once held the ashes of Julius Caesar.

A monumental fountain in Rome features a large statue of Moses that has been criticized for centuries.

St. Francesca Romana, patron saint of drivers, resides in the church she founded.

A mysterious chasm in the heart of the ancient Roman Forum, the Lacus Curtius was once believed to be a gateway to hell.

Installed in an act of one-upsmanship, the annual sundial in this church is also a symbolic victory for the Gregorian calendar.

The martyr's wax-enhanced skeletal remains lie preserved in a glass case in the Santa Maria della Vittoria in Rome.

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

Legend says this mysterious stone head belongs to a woman who was petrified by an alchemist.

The oldest operating pharmacy in the world features 800-year-old recipes.

Museum dedicated to literary greats of the Romantic Period is also the home in which Keats met his untimely end.

One of the world's smallest prisons boasts just two small cells.

An 800-year-old island castle in Guernsey's main harbor.

The initials "GW" mark where one of Scotland's most important Protestant martyrs was burned at the stake.

A site of pagan worship which still attracts people looking for fairies.

These gigantic skeletons tower over visitors and provide insight into the creatures that once ruled over Ireland.

The block of aged dairy is probably still edible after 2,300 years in a peat bog.

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