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.

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

Built on the remains of one the Incas’ most important gathering spots, this square keeps the spirit of a fallen empire alive.

On this tiny spot of land in the middle of Lake Titicaca the only ones who do the knitting are the men.

This geometric feat is a testament to the Incas' mesmerizing architectural abilities.

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

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

Launchpad for the US military’s dead mouse operation to battle millions of snakes.

A series of three shiny letters mark the boundary of an old refuge for those being pursued by debt collectors.

The most loyal of little dogs, or a Victorian era publicity stunt?

This 17th-century street hidden beneath Edinburgh was once a breeding ground for the black death.

The only quarter of the Old City not dedicated to a major world religion.

Northern Ireland's Brobdingnagian stepping stones.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

Amid the rubble of Aleppo's Old Quarter, part of a historic market has been restored and re-opened.

One of the oldest and largest castles in the world.

This exceptionally well-preserved ancient marvel also houses a small museum dedicated to Jordanian folk tradition.

This daunting 1st century fortress was purportedly the site of one of the most dramatic revolts of the Jewish-Roman wars.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the first ‘Harry Potter’ film.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

A pair of gigantic baby heads greet passengers at Atocha Station.