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

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

Where commuters walk through remnants of an ancient Greek necropolis.

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

A sharp sculpture made of thousands of pieces of jagged glass.

There are many Byzantine-era churches still standing in Athens, but this is the only one with a 2,500-year-old column rising through its roof.

The ruins of an ancient Roman tomb hidden in the basement of a trendy clothing store.

The abandoned summer estate of the former Greek Royal Family.

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

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

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

Hideout of thieves, monks, and goat-footed gods.

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

A crushed gate and giant bronze head serve as a reminder of Greece's fight for freedom.

What once sat in the world’s spotlight is today a largely disused ghost complex.