This small 16th-century church in Athens is almost entirely surrounded by a modern building.

This Ottoman-era church is hidden amid a busy tourist area.

An ancient octagonal weather station named for the eight Greek gods of wind.

150 or so scrounged-up lamps, chandeliers, and lanterns light up this alley in central Athens.

The Cycladic architecture makes this Athens neighborhood feel like an island paradise hidden in the shadow of the Acropolis.

Legend says this sacred tree was a gift from goddess Athena.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

The historic tower houses of this nearly abandoned Greek town have been compared to the spikes on an iguana's back.

This wrecked ghost ship has been rusting on a Greek beach since the 1980s.

This 15th-century island fortress later served as home to the executioners no one wanted to live near.

Public water fountains built during the Ottoman Era still stand throughout this seaside town.

This 18th-century former mosque held the first Hellenic Parliament.

This church is dedicated to the patron saint of seafarers.

Built by the Ancient Greeks, this chariot bridge is still in use today.

This legendary city has been a tourist attraction for centuries.

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

The beautiful bas-relief lines a sliver of a 19th-century walking path between two charming French villages.

Immortalized by artists, this church incorporates a medieval lighthouse into its shoreside structure.

Antique cinematography artifacts fill this museum dedicated to the inventors of the moving picture.

Napoleon's childhood home is now open for people to explore the beginnings of France's short general.

This hidden garden boasts amazing views of Lyon.

Thousands of flamingos and other bird species flourish in these Camargue wetlands.

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

Abandoned blockhouses from Nazi Germany's Atlantic Wall erode into the sea on a French beach.