A striking public sculpture representing the period of martial law in Communist Poland.

Relive a Polish uprising via an enormous, century-old cyclorama.

This oddly beautiful water cistern is a techno-temple to the wet stuff and a multimedia masterpiece.

In the center of Wrocław's old meat market stands a somber tribute to the city's livestock.

One of the oldest and certainly best preserved Cistercian abbeys still in existence.

This striking steel sculpture transforms environmental data into art.

A remarkable medieval structure born from a 14th-century disaster.

This pirate-broadcasting-tower-turned-restaurant played a rebellious role in the history of Dutch television.

A set of 27 bamboo tubes creates an eerie soundscape that changes with the wind.

The largest Roman amphitheater in the Balkans once held over 20,000 people, but managed to lay hidden for hundreds of years.

Once the fallout shelter of a dictator, this sprawling bunker is now a combined history museum and contemporary art gallery.

Life-sized painted illusions let pedestrians blend in with the street art.

Twice a day a speeding train passes only inches from the homes of this residential neighborhood.

Ho Chi Minh's perfectly preserved body has been on display here since 1975.

Home of the unusual art of water puppetry, one of Vietnam's oldest curiosities.

A unique work of automotive art calls this shopping center home.

Cat art as far as the eye can see.

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

A man's head is enshrined beneath a statue near the first building constructed for the modern Olympic Games.

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

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.

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.