The site where two doves fell in love.

This charming cobbled backstreet is the most Instagramable street in Paris, much to the residents' annoyance.

The site of slaughterhouses that once satisfied Parisians' taste for horse meat is now home to a park and book market.

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

This hidden garden boasts amazing views of Lyon.

This abandoned church in central Lyon is missing its front stairs.

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

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

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

Lyon's miniature version of the Eiffel Tower was built as a statement in support of French secularism.

A colorful piece of contemporary art cheerfully clashes with Lyon's historical architecture.

The mummified heart of Louis XVII, the lost dauphin of the French Revolution.

This 18th-century sundial was designed to calculate the date of Easter each year.

An unusual number plate signifies the building's saucy past.

Indents in the pavement are all that remain from a grisly death machine in Paris.

How did a French journalist’s grave become the sexiest statue in the cemetery?

A blast of nostalgia awaits visitors to this miniature indoor raceway.

Egyptian Revival movie palace abandoned for decades and restored in 2013.

This surreal statue brings a famous French novel about a supernatural cad to arresting life.

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

A popular shrine where the Blessed Virgin allegedly appeared in 1830, displaying a holy armchair and two incorruptible remains of Lady Saints.

A castle-like sea fort from the 17th century is now a museum to oyster farming.

This Bordeaux parking garage has 712 indoor spaces, and one outdoor.

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