There's a mini version of Iguazu Falls hidden in the Balkans, and it's got a rope swing.

A towering spire in the fortress of Kalemegdan honors the victorious armies of Serbia during their struggles against the Ottoman Empire.

This 14th century castle withstood years of battle but is now sliding off the hills into the Danube.

Destroyed Serbian army headquarters sits half crumbled in a largely revitalized Belgrade.

A pair of connected skyscrapers form this symbolic gateway.

A war-torn Olympic relic is being overtaken by graffiti and nature.