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

Inat Kuća, or "House of Spite," is more than just an oddly named restaurant.

This historic timepiece is thought to be the only public clock in the world that keeps lunar time.

A number of craters left by fatal mortar strikes have been filled with red resin to remember those lost during the Siege of Sarajevo.

Oriental bazaar in the heart of Sarajevo.

A pocket of jungle amidst urban expansion in Panama.

A huge, bustling local market in Panama City.

The somber sculptures commemorating Irish Famine on the river Liffey in Dublin.

This Irish museum in a historic 19th century market pays tribute to the glory of butter.

This controversial Irish show cave is home to a massive formation known as the Great Stalactite.

This singular Irish dolmen is more Frank Lloyd Wright than upright stonehenge.

An unusual manor of stunning beauty, born out of a crippling disease.

The oldest inn in Kilkenny was established by the first convicted witch in Ireland.

One of Ireland's most infamous prisons for rebels including men, women and children.

A miniatures park with a model of Wolf's Lair as it looked during World War II.

Gliwice Radio Tower, likely the tallest wooden structure in the world.

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

A floundering Polish shipyard was once the soul of the Solidarity movement that capsized communism.

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

These massive moving sand dunes have swallowed an entire village and are still on the run.

Polish luminaries and masterful folk art find sanctuary in this unique cemetery.

This sprawling concrete suburb of Kraków was designed by the Soviet Union as the model proletarian city.

The silly symbol for an underground protest group is now scattered around the city.

A peculiar family mausoleum built by a German nobleman captivated by the occult.