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

In this Parisian garden's grotesque former life as a zoo it fed exotic animals to the bourgeois and put humans on exhibit.

Exquisite wall sculptures carved in secret by an early quarryman in an obscure corner of the Paris Catacombs.

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

Walk upon the mementos of the dead in this Parisian courtyard paved with medieval tombstones.

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

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

The morbid items in this small and hidden museum are not for the weak stomached.

Abandoned for decades, trains still pass through the now-restored remains of one of Madrid's first metro stations.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

An ancient Egyptian temple in the middle of Madrid, Spain.

The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

This restored Portuguese cafe may well be the most beautiful place in the world to grab a Big Mac.

Residents of Berlin take their coffee and cake in one of the city’s most restful spaces: a cemetery.

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

This off-limits room in the National Library of France is home to a system of pneumatic tubes, once used to bring books to readers.

Statue of death tucked in the University of Medicine courtyard.

The first green space constructed on an elevated viaduct.

Apparently, Hell has waterfalls in Slovenia.

A cemetery for Slovenian notables also serves as a popular recreation space.

A trough of 700 strange bronze faces runs through a narrow alley in Ljubljana's old town.

The "dragon babies" of southeastern Europe.

A beautiful drive through the foot of the Alps traces the path of 15th-century Turkish raids.