The yawning maw of this pagan visage is said to bite off the hands of liars.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

Just across from the "Last Supper" painting is the famous painter's vineyard, a gift received for creating the masterpiece.

Drink wine handed out through a window as part of an age-old tradition.

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

A submerged archeological park still holds the wonders of a Roman Sodom.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

A 16th-century horror show built in a lovely Italian garden.

This triumphal arch celebrating the Sun King's conquest of Lille is a masterpiece of military architecture.

Tables of secondhand books fill the inner courtyard of this 17th-century stock exchange.

The ancient heart of Tunis is an enormous maze of narrow streets and alleyways.

Made famous by 'Star Wars,' these troglodyte homes face an uncertain future.

Buildings from the fictional planet of Tatooine still litter the Tunisian desert.

A museum dedicated to linguistics, from how babies learn to talk to endangered and extinct languages.

The industrial architecture honors the laborers who brought the Exposition Universelle of 1900 to life.

The floorboard scrawling of a tragic madman is on public display outside a Paris hospital, much to the dismay of its opponents.

135 bronze medallions mark a French meridian line which once rivaled the hotshot Greenwich timeline.

The narrowest street in Paris.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

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

The history of radiation is on safe display at the foot of a radiation science laboratory.

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

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