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

Exquisite wall sculptures carved in secret by an early quarryman in an obscure corner of the Paris Catacombs.

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

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

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

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

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

This modest marker near Notre Dame identifies the very center of Paris.

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

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

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

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

Nicknamed the "Museum of Horrors," this French anatomical collection has been fascinating visitors for over a century.

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

Lyon's "Wall of the Silk Weavers" is one of the largest murals in Europe.

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

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