A larger-than-life house of cards stands outside the house of a former fashion designer.

The Cathedral of St. Ambrose has been hiding a special parishioner within its walls.

The patron saint of spinsters grasps a container of dried blood.

Among the ostentatious rococo ornamentation of this church, an image of death cuts the life-thread.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

A fearsome dragon clings to a corner of Munich's city hall.

See what remains of a once grand ancient Roman circus.

One of the world’s smallest bars, just 13 square feet, is brimming with speakeasy flair.

The mountaintop inspiration for Umberto Eco's "The Name of the Rose."

Italy's only urban waterfall has enchanted artists and travelers for centuries.

One of the most photographed locations in the entire city.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

A massive bridge forms part of an aqueduct that was deemed an architectural wonder of its time.

Buried next to Pompeii, this lesser-known Roman villa was the opulent vacation home of Emperor Nero's wife.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

Old batteries and frog skeletons reside in this lakeside monument to Alessandro Volta.

A galley-shaped memorial to the prisoners of an infamous fortress.

This unique building in the main square stands out among the city's typically Baroque architecture.

An abandoned set from the 1980 film "Popeye," claimed and repurposed as a theme park by creative locals.

Stone Age solar temple is aligned with the sun on each equinox and solstice.

The floor of this spectacular Baroque sanctuary is covered in memento mori.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.