A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

An open-air "garden" of mural art that changes weekly.

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

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.

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

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

Monsters and miniatures are held in equal esteem at this wondrous museum.

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

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

This colorful but controversial ceiling has been likened to a 21st-century Sistine Chapel.

The world's largest second-hand graces a clock surrounded by constantly changing flower beds. 

One of the longest wooden benches in the world snakes around Geneva's Treille Promenade.

Two very green residential towers cleaning the air in one of Europe's most polluted cities.

Before there were doorbells this bronze ear was installed for visitors to announce their arrival.

This large, circular tomb is the final resting place of the first emperor of Rome.

A statue representing a lost Roman profession that was vandalized for centuries.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

This hidden Art Nouveau courtyard is an opulent feast for the eyes.

This small church was constructed over the ruins of three temples dating to the Roman Republic.

In the early Roman Empire, people deemed traitors and criminals were tossed to their deaths from this rock.

This ancient Roman prison is decorated with an upside-down cross not as blasphemy but as saintly tribute.

Legend has it that this bronze orb, which sat atop an ancient Egyptian obelisk, once held the ashes of Julius Caesar.

The martyr's wax-enhanced skeletal remains lie preserved in a glass case in the Santa Maria della Vittoria in Rome.