Enter the world under the hill at this ancient UK burial chamber.

This picturesque archeological site looks like it was pulled straight from a fantasy novel.

Scotland's oldest medieval bridge is also among the last reminders of early medieval Aberdeen.

The remains of a grand castle that may have inspired Bram Stoker's Dracula.

The mummified relic of St. Catherine sits forever on a golden throne.

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

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

The largest bell in the world has been swinging high above a Cologne cathedral for almost a century.

A church filled with the bones of hundreds of virgins martyrs—or so they say.

Science fiction's grandfather has a fittingly marvelous tomb.

This miniature Paris, built out of trash, is one man's two decade labor of love.

Fighting the British and making game shows for over 150 years.

The mummified heart of Louis XVII, the lost dauphin of the French Revolution.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

The spiral staircase hidden inside this giant Parisian column was likely built for Catherine de Medici's astrologer.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

Indents in the pavement are all that remain from a grisly death machine in Paris.

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

The celebrated eyesore created by starry-eyed sweethearts.

The Sun King's military models, saved from the Louvre.

An overlooked marble is the only surviving in-place 18th century example of the measurement that changed how we define distance.

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

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.