A small window on Via Piella offers a lovely and rare peek at Bologna's lost canals.

This strange bovine gargoyle is said to have been put in as a passive aggressive form of revenge.

A plaque on the base of this statue holds a bewitching design.

Renaissance hospital featuring a rotating door into which unwanted babies were dropped.

Drink wine handed out through a window as part of an age-old tradition.

This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

The famous sculptor left his mark on this Italian wall in an internationally protected example of street art.

The first modern cemetery of Lyon is complete with more than 200 chapels and monuments.

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.

After decades of damage, this feat of timekeeping and automaton art has been given a new lease on life.

From horses to stainless-steel trucks, this iconic Providence burger wagon is one of the oldest mobile diners in the country.

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

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

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

This statue stands in honor of Antoine de Saint-Exupéry, the French author of 'The Little Prince' and an aviation hero.

This tower is one of the best-preserved (and least-visited) remnants of medieval Paris.

This bridge was constructed from the rubble of the infamous Bastille.

One of Jeff Koons’s largest sculptures and his first commemorative work.

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

A giant silver apple a day keeps the perils of capitalism away.

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

Montmartre's sole surviving windmill became an iconic landmark for 19th-century painters, artists, and bohemians.