Largest site of dinosaur footprints ever found includes more than 5,000 tracks.

Thousands of fossilized footprints speckle this Bolivian national park.

The world's largest ecosystem of its kind is home to South America's only native species of bear.

Only gap in the 30,000-mile span of roads called the Pan-American Highway.

An inspired museum dedicated to the patron saint of enslaved people, inside the cloisters where he lived and died.

An ancient city hidden in the heart of the Sierra Nevada mountains.

A cozy bookstore and coffee shop in the heart of Cartagena's Old City.

Ancient artists in the middle of nowhere.

This Bogotá museum houses the world's largest collection of pre-Columbian gold relics.

This elegant Colombian fortress was one of the torture headquarters for the Spanish Inquisition.

A sobering account of the vibrant multicultural neighborhood that was destroyed under apartheid.

The world-record holder for the longest bridge stretching continuously over water.

A lively circle of dancers in the Georgian capital commemorates an ancient rite of spring.

A precariously balanced rock perches on the edge of a cliff created tens of thousands of years ago by glacial erosion.

This massive complex is made up of hundreds of smaller temples that date back to the ninth century.

This Slovakian statue of an emerging sewer worker might just be a bronze peeping tom.

Former laboratory of radical psychiatrist Wilhelm Reich.

Some of the saint's blood and bones are said to reside in Dublin.

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

These steps offer a breathtaking view of one of Europe's most besieged fortresses.

The farmhouse owned by the Danish author who wrote "Out of Africa" is now a museum honoring her legacy.

One of the most popular megalithic sites in Ireland stands as a humbler version of Stonehenge.

The largest prehistoric ruins south of the Sahara, once a powerful center of international trade.

These naturally balancing rocks were pictured on every Zimbabwean banknote, up to the 100 trillion-dollar note.