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

The home of Greece’s national poet sits crumbling in the middle of a popular tourist district.

This building displays the scars of the “Dekemvriana,” a dark time in modern Greek history.

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

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

When construction began on this hotel, developers were surprised to find the ruins of an ancient civilization.

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

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.

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

The Acropolis house that became Modern Greece’s first university.

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

The site where the summer solstice helped ancient Greeks sync the lunar and solar calendars.

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

Rest stops along this pathway offer some of the best views of the Acropolis of Athens.

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.

A former military hospital is now used to study and preserve artifacts of the Acropolis.

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

Dating from the 18th century to today, this museum houses a collection of over 1,200 musical instruments.

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

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

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.