Lyon, France is home to two remarkably preserved Roman theaters, one dating back to 15 BCE.

A tiled, multi-level garden of survival in Lyon.

Monsters and miniatures are held in equal esteem at this wondrous museum.

Hundreds of hidden passageways weave through the old quarters of Lyon.

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

The Argonaute submarine was the French navy's pride and joy in the 1950's.

Dedicated to the history and culture of smoking, this small museum now includes a vape lounge.

The subterranean "lake" below the Paris opera house inspired the Phantom of the Opera's lair.

A modern-day Lascaux cave underneath Paris.

With a history of slaughter, feast, and famine, remnants of the pork industry decorate this area--even its church.

A subterranean shelter remains intact under a busy Paris railway station.

BDSM, 1930s Style.

This Paris art space celebrates the creativity and ingenuity that springs from abject poverty, especially in Africa.

In the best of all possible worlds, everyone will get a chance to see this statue in which Voltaire's heart is interred.

Remains of Roman amphitheater hidden in a sleepy quarter of Paris.

This Parisian café sticks almost exclusively to an ethos of reuse.

Dedicated to the art of hunting, with juxtapositions of contemporary art.

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

This Parisian fountain is a little bit fantasy and a little bit nightclub.

This museum houses an imposing skeleton army comprised of creatures great and small.

Dolls of all shapes and sizes display the eras of femininity in this spooky and beautiful collection.

A grotto-like lodge decorated with gilded mosaics, rocks and a noisy waterfall was the setting for the most sumptuous pleasure house of 1900s Europe.

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

Paris' fabled purveyor of exotic taxidermy and natural history curios.