These historic defenses ensured the city within would survive hundreds of years of occupations, sieges, and invasions.

Bridge that died in war and was resurected.

Oriental bazaar in the heart of Sarajevo.

A miniature train-ride through Slovenia's largest cave system.

The "dragon babies" of southeastern Europe.

A whimsical bridge adorned with decorative dragons.

This abandoned Slovenian military barracks has become a punky-political art squat.

If you’ve ever seen a picture of Machu Picchu, then you’ve seen a picture of Huayna Picchu—you just didn’t realize it.

A set of ancient drawings in the desert of Peru that are so massive, many of them can only be fully seen from the sky.

The Uros people live on floating reed islands in lake Titicaca.

The stones of this Incan wall complex fit together so well you couldn't fit a piece of paper between some of them.

Death rituals and sacrifice inside a Peruvian megalith.

Preserved Inca city and site of the last Inca stronghold against the Spanish conquistadors.

Underground monastery and fortress.

Ancient rock-hewn town that witnessed key events of Georgian history.

A museum glorifying the life of Stalin, located in the city of his birth.

This neon lit Georgian cave claims to hold the boulder Prometheus was chained to.

The charmingly disheveled clock tower of Tbilisi's puppet theater.