Once home to an aristocratic family and a workers' organization, this intricately tiled building now houses a chain restaurant.

A museum in the former home of Marxist revolutionary Leon Trotsky.

Gilded heaven for philatelists and architecture freaks, still in full working order despite sitting atop tremulous ground.

The famous artist couple lived and worked here, in two different houses separated by a bridge.

Frida Kahlo's childhood home, now a museum of her life and works.

2300-year-old Roman road connecting the empire.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

The yawning maw of this pagan visage is said to bite off the hands of liars.

Rome's semi-secret peephole vista is also a former Crusader stronghold.

A seemingly endless landscape of pure salt stretches far across Bolivia.

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

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

A desert that evokes the surreal.

The largest geyser field in the southern hemisphere is a spectacular sight.

A sculpture of a giant hand reaches for the stars in the middle of the Atacama desert.

In the most arid desert on the planet, the world's leading telescope allows astronomers to see more than has ever been seen before.

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

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

A display of works by one of the world masters sacred art, an 18th-century Brazilian sculptor nicknamed "the little cripple."

Known as the "Finger of God," a dramatic rock formation resembles a divine hand extending towards the heavens.

A 125-meter long "tribute to the Brazilian people."

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

Eduardo Kobra’s breathtaking 32,300-square-foot graffiti wall took over Rio’s Olympic Boulevard.

Museum precariously perched on a massive yellow pillar.