Oh You Francy, Huh?

150-year-old satirical tableaus made from stuffed frogs.

Museum of science fiction, utopias, and extraordinary journeys of the mind.

This lovely little bridge hidden in a Switzerland gorge is essentially a fairytale.

Over 3km of caverns and caves at the Switzerland-France border contain the largest underground river in Central Europe.

Balconies that have a most unusual accent.

Even France's favorite aquatic son Jacques Cousteau, couldn't get to the bottom of it.

From carts to cars, this leftover Roman bridge in France has managed to survive for centuries.

This whimsical castle of grottoes was the labor of love of a French postman, and one of the greatest achievements of outsider architecture.

For hundreds of years, automatons moving to metallic music have been marking the passage of time.

Swiss vineyards in a UNESCO heritage site.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

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

This massive library holds what was once the largest book collection in the world.

A haunting collection of the vanished and disappearing natural world.

This French ghost town from World War II has been left as a memorial to German atrocities during World War II.

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

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

Science fiction's grandfather has a fittingly marvelous tomb.

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

The famous winding walk at Chartres is surrounded in mystery and myth.

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

Ancient paintings known as the "Sistine Chapel of Cave Art."

A cave dwelling that was started by the Celts, expanded by monks, and finished by knights.

Sacked by Vikings, blessed by William the Conqueror, dealt a fatal blow during the French Revolution—these ruins have seen it all.

An overlooked marble is the only surviving in-place 18th century example of the measurement that changed how we define distance.

A 14th century bridge built as a fortress, where the devil lurks on one of its towers.

The largest underground church in Europe.

This natural French spring has been turned into a magical grotto by Roman and medieval constructions.

Historic medieval fortified city in southwest France.

The mental institution where Van Gogh created some of his most famous work now allows guests to walk in the artist's footsteps.

These quaint French houses dangle precariously over a precipice.

A natural arch carved by a river gave its name to the so-called "Cave of Forgotten Dreams."

Natural history museum celebrating biodiversity with a parade of taxidermy animals.

An icy lake tucked among jaw-dropping alpine panoramas.

This French castle is said to have once held the Holy Grail but is now a gorgeous mountaintop ruin.

Hundreds of prehistoric stones, arranged in perfect lines in a French field.

A public park off the beaten path with a beautiful waterfall and 13th century Cistercian abbey.

This salt marsh in Southern France is as pink as the flamingos that inhabit it.

A chapel on a volcanic core, marking the end of a successful journey.

The world's largest reflecting pool is just two centimeters deep.

The great Italian Renaissance painter was laid to rest here in the Chapel of Saint-Hubert.

A well-preserved medieval village nested on a rocky outcrop and surrounded by a network of cliffs, natural bridges and canyons.

This stunning French estate was so lavish that it landed its original owner in jail for the rest of his life.

This ancient Roman bridge and aqueduct still stands as a wonder of classical construction.

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

Bits of architecture from a town destroyed in World War I now decorate this hotel garden.

A colossal sculptural lion built by the same man who designed the Statue of Liberty.

France's Lilliputian park displays over 100 of the country's monuments for visitor perusal.