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

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

Gladiators once walked this ancient, subterranean passage.

Tear apart fatty, gently charred lamb chops with your bare hands.

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

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

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

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

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

The entrance to this Frankfurt subway station looks like an old tram car crashed into the concrete sidewalk.

Ugly 18th-century dwarf statues living in a perfectly landscaped Austrian garden.

These bronze pamphlets remember a remarkable group of Germans who fearlessly opposed the Nazis in the very center of their power.

The scars of World War II are preserved on its walls.