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

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

The largest crypt ever constructed in France was built in the 11th century on an ancient Druid sacred site.

A mosaic-tiled house built by graveyard sweeper Raymond Isidore.

Thousands of well-dressed mummies below a monastery.

A collection of grotesques lines the walls of this Italian villa.

Stunning Roman aqueduct used for 1900 years and still standing.

Now a pile of ruins and rubble, this was a lovely mountain town as recently as 1960.

A breathtaking canyon offers stunning views and frightful pathways through an ecological paradise.

A marvel of Byzantine engineering under the streets of Istanbul.

Meet the bronze beloved pet to a family of famous peeing statues.

From Tintin to the Smurfs, Europe's greatest graphic icons are celebrated in a grand Art Noveau gallery.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

A beautiful and classically designed villa, with an hourly infestation of monsters.

The opulent home that inspired Tintin's Marlinspike Hall and the adventures within.

Bordered by forest on three sides and the ocean on the other, the Great Dune of Pilat is the highest sand dune in Europe.

A medieval house adorned with enigmatic carvings, including one of a man displaying his masculine attributes.

Beautiful carved tunnels.

A huge Megalithic chamber tomb located behind a cafe.

The vibrant buildings in the “capital of the comic strip” celebrate the art form that made it famous.

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

Of course Salvador Dalí lived in a castle...

These fly sculptures are scattered around the city and represent the patron saint of Girona.

Historic medieval fortified city in southwest France.