One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

The man who wasn't there.

A dead saint, a deadly poison, and a mysterious holy ooze.

This black sand beach was crafted from volcanic explosions including the historic Minoan eruption.

A Bronze age settlement on the Greek island of Santorini might have been the inspiration for Plato's Atlantis.

A quirky bookstore hidden beneath a sea of whitewashed Greek villas.

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

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

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

This building served as the first customs house in modern Greece.

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

This legendary city has been a tourist attraction for centuries.

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

This mystical orb covered in strange symbols is thought to have been used in ancient Greek magical rituals.

The ruins of an ancient mansion sits in front of and underneath a contemporary art gallery.

The only surviving choragic monument is a trophy awarded in 334 BC for the winning dramatic chorus.

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.

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

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

Legend says it was constructed with the destroyed pillar of an ancient Greek Temple.

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

The ruins of an ancient fortification wall sit in front of and underneath this boutique hotel.

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