Preserved portions of Athens's ancient defenses are on display in a subterranean parking garage.

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

One of the best collections of Byzantine art housed in a magnificent, 19th-century neoclassical home.

An important example of architectural history slowly decays in the city center.

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

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

This historic structure has been used as a mosque, a barracks, a prison, a school, and a bakery.

Luminaries of all stripes have sipped strong Greek coffee at this cafe since 1839.

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

Catch raucous live performances of traditional tunes at this old-school taverna.

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

These ancient ruins hide in plain sight next to a dessert shop.

This Ottoman-era church is hidden amid a busy tourist area.

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

An ancient Greek monument and a Byzantine church coexist inside this cave.

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

This post-Ottoman era church in Athens was built by locals to serve the residents of Anafiotica

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

With no menu and no sign, this 130-year-old taverna doles out affordable home cooking.

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

This Ottoman-era Greek Orthodox Church was built to honor Agia Pareskevi, a Christian saint.

An ancient site that has revealed incredible artifacts including portions of the Themistoclean Wall.

Savor sheep milk yogurt at the last of Athens' dairy bars.

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