The Lone Star plaque hangs in a bombed-out bunker in Normandy to honor a Texan colonel's heroic actions on D-Day.

This symbol of the French Revolution still stands where it was first planted during the 18th-century.

This enormous "cloth of the conquest" depicts the Norman invasion of England in mind-blowing detail.

The curious underground history of keeping Paris clean.

This 200-meter-high waterfall marks the site of Achilles’s immortal baptism at the mouth of the River Styx.

Ruins of a 13th-century fortress perched above a breathtaking Mediterranean bay.

This town named for the ancient God of War is home to fewer than a thousand people, but it's the birthplace of the Greek Revolution.

A magical, if a bit tacky, 1960s castle conjures up medieval fairytales and Greek mythology.

This quaint farm in the Peloponnese countryside hides an astonishing cache of antique curiosities.

A hilltop monastery on the Greek island of Hydra.

This pink watchtower served as the seat of the Greek government after independence from the Turks.

Get hands on with the technological marvels of the Classical world.

This beehive tomb built for royalty sat hidden for over 3,000 years.

This smily stone feline is meant to represent a mythical lion that almost destroyed the island of Kea.

These artifacts were discovered during the construction of the airport, with some dating back to the Neolithic period.

One of the greatest collections of coins in the world is housed in the former mansion of an archeological pioneer.

The site where hundreds of Greeks were tortured by the Nazi secret police is now a cosmetics store.

This small museum once served as a royal hunting pavilion for King Otto Friedrich Ludwig.

The ruined doorway is a portal to the building's turbulent and torturous past.

A grotesque collection of wax limbs depicting the symptoms of venereal disease.

The oldest cemetery of modern-day Athens blends the modern and ancient worlds.

A sprawling collection of books and manuscripts about ancient Greece that would have put their famed libraries to shame.

This architecturally eclectic early-20th century mosque was built as a place of worship for the Islamic followers of a Jewish messiah.

This gem is often wrongly overshadowed by the larger, newer Metropolis church in Athens.