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

Situated on a sacred Inca site, this 16th-century cathedral took nearly 100 years to build.

Now containing the bones of the actual conquistador, instead of someone else.

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

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.

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.

This indoor ski resort has a mountain contained inside a mall.

The world’s largest permanent desert lake is a UNESCO World Heritage Site.

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.

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

A marvel of Byzantine engineering under the streets of Istanbul.

This fort dates back to 1588 and was colonized by the Portuguese, Dutch, and English and sits prominently on the Indian Ocean where azure water lap the coast.

An ancient temple to the Hindu god Shiva surrounded by jaw-dropping scenery.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

A creepy, deserted mock Arabian village can be found in the middle of the Qatari desert.

A mesmerizing wonderland of salt-encrusted tree branches and pencil roots.

An imposing Omani fortress surrounded by date palm trees.

Historic funicular railway, believed to be the shortest railroad in the world.

At this airport "microcinema," you can catch a film before you catch a flight.

The U.S. Navy's last diesel-electric submarine rests half-submerged in the middle of Portland.