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

View the ancient remains of buildings and the ancient "River of Hades" before hopping on a train.

A historic building houses one of the most important archaeological institutes in Europe.

The only ancient site that remains on the south bank of the sacred Ilissos river.

Gladiators once walked this ancient, subterranean passage.

According to legend, this ancient column contains healing properties.

A tiny Greek Orthodox church from the Ottoman era hides on a busy city street.

After a catastrophic forest fire, a Greek artist transformed scorched tree trunks outside an old sanatorium into this haunting sculpture garden.

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.

A Byzantine church containing the holy remnants of three saints sits atop the site of an ancient temple.

An often overlooked ancient site in downtown Athens with substantial history (and nature).

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

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

A man's head is enshrined beneath a statue near the first building constructed for the modern Olympic Games.

This striking sculpture of Icarus honors Greece's fallen flyers.

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

Where commuters walk through remnants of an ancient Greek necropolis.

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

A Byzantine-era church hidden in a wooded area below the Acropolis.

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

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

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

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

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