An empty relic of the Moscow Olympics crumbles away in Estonia's capital.

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.

This museum preserves the hand-dug tunnel that kept Sarajevo afloat during the Serbian siege.

An expansive complex of subterranean tunnels is all that remains of one of Europe's most formidable medieval fortresses.

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

Nikola Tesla's ashes are held in a golden sphere, surrounded by his works.

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

A 10 million-ton rock once worshiped by the Tahamies Indians, accessed by an astounding staircase.

A museum founded to reflect on and remember the human rights abuses under Chilean dictator Augusto Pinochet.

As one of the world's largest hydroelectric dams this plant took two countries to get built.

This massive Brazilian church is built like an angular, technicolor pyramid left by Mayans from the future.

The soaring gondola lines form the longest aerial cable car system in the world.

In La Paz's huge, city-sized cemetery, the deceased are stored in rows of apartment-like buildings.

A desert that evokes the surreal.

This red lake 4,000 meters above sea level is home to rare flamingos.

On the outskirts of a desert trading village high on the Andean plain, steel giants have been destroyed by salt winds.

Popular tourist destination where witches in dark hats sell dried llama fetuses for good luck.

A bright little alley in La Boca is a part of tango history.

A series of waterfalls so massive they straddle the border of Argentina and Brazil.

Life and death are on parade at the most reliably perilous site of “the Great Migration.”

Kenyan restaurant is a carnivore's paradise, serving exotic meats at its ultimate 'Beast of a Feast.'

Get tall with nature's lankiest beasts and their warthog friends at this Kenyan preserve.

This small group of sand dunes manages to pack in a strange rainbow of colors.