This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

The oldest hotel in the world has been operated by the same family for over 1,300 years, even catering to samurai.

At 135 years old and counting, this historic print shop is heaven for poster nerds and music buffs.

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

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

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

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

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

A 2,000-year-old computer demonstrates remarkable engineering and astronomical precision.

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

This famous archeological mystery may be an ancient example of movable type.

This little Greek plateau is home to thousands of rustic, white-sailed windmills.

A minotaur, a labyrinth, and a dubious restoration pull in visitors from around the world.

An astounding collection of medical specimens, including bits of President Lincoln.

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

This ancient hydrological marvel is now the base of a modern outdoor cinema.

The railway carts travelers to central Athens's highest peak, which offers stunning vistas of the city.

This art center is way beyond your average pumpkin-carving operation.

This fairytale medieval church in Poland originally spent centuries in Norway.

This museum is a full-size replica of an original church constructed during the 13th-century.

The burning of this 12th-century church kicked off a campaign of Norwegian Black Metal terror.

Vikings and Evangelicals have both had a hand in this replica medieval church.

An intricately carved Viking church overlooks a glistening fjord.

The first ever diner included on the National Register of Historic Places is famous for its custard French toast.