The real faces of Venice beach captured on Romanesque columns.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

A large portion of this navigable canal runs under Paris's famed boulevards.

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

A scandalous Art Nouveau collaboration that set Paris all atwitter at the turn of the 20th century.

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

One of Jeff Koons’s largest sculptures and his first commemorative work.

Beggars were miraculously "cured" of their fake ailments when they returned home to this 17th century Paris slum each night.

A lush vertical garden blooming in the heart of Paris.

A series of abstract, silly sculptures represent the works of a great modern classical composer.

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

A poem by Arthur Rimbaud is inscribed on the wall of a street that, while it is only one block long, plays a key role in multiple novels.

Site of a classic 19th-century physics experiment to prove the earth is rotating.

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

This demon atop the Notre-Dame de Paris looks utterly bored.

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

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

A mammoth WWII anti-air defense tower has been repurposed as a hotel with a rooftop garden.

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

One of the largest underground systems runs under Canada's largest urban center.

Little remains of the once flourishing Asbestos' asbestos mine.

Canada's largest graveyard boasts a lot of noteworthy artifacts as well as its own computerized mapping service.

This crumbling industrial fortress has attracted daredevils, filmmakers, and historians.