According to myth, Zeus himself was hidden in this cave to escape being eaten by his dad.

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

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

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

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

Gladiators once walked this ancient, subterranean passage.

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

The oldest standing Byzantine church in Athens is tucked within a monastery in the middle of an upscale shopping district.

Since 1969, this restaurant has served up dishes typical of Istanbul's Greek diaspora.

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

The hallucinogenic center of the ancient world.

Where commuters walk through remnants of an ancient Greek necropolis.

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

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

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

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

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

The world's largest historic armory was established by independent citizens to defend themselves from the wars of larger forces.

Fantastic stories on a miniature railroad.

Austria's ultra-modern art museum looks like Cthulhu's giant alien heart.

Resting in the middle of an Austrian river, this sci-fi "island" lets people cross in neon style.

Double spiral staircases are not unheard of, but they are very rare.

A heated statue pays tribute to one of Sweden's great actresses.

Not far from where one of the most famous Swedes of all time is buried, an infamous man was put to rest.