This slowly crumbling mansion was home to one of East Africa's richest and most powerful slave traders.

After sunset the heart of Zanzibar's historic Stone Town neighborhood transforms into a culinary playground.

This small roadside eatery exists in both the Northern and Southern hemispheres, as the equator runs right through it.

A strangely forgotten claimant to the much contested title of "Source of the Nile."

The home of half the world's population of critically endangered mountain gorillas.

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

This contentious squat has stood through fire, violence, and government intervention as a hotbed of leftist protest.

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

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

A desert that evokes the surreal.

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

The mysterious "Candelabra of the Andes" could represent anything from a god's trident to a hallucinogenic plant.

A backdoor to Machu Picchu that only the most foolhardy infiltrator would attempt to breach.

An unexpected desert oasis in South America.

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.

An unusual and beautiful form of mass transit serves the city's steepest neighborhoods.

Storied crypts fill the most famous cemetery in Colombia.

The world's tallest palm trees look like the whimsical kind of plant you'd find in a Dr. Seuss story.

The Andean town where every single building is decorated with a brightly colored frieze.

Unparalleled stargazing, one of Colombia's best observatories, and a swimming pool can all be found in the middle of this ancient tropical forest.

A swing to dangle you off the very edge.

The mortal remains of an estimated 70,000 people lie in the basement of a monastery in Lima, Peru.

Mountain of unimaginable riches that bankrolled the Spanish Empire, complete with its own underworld god.

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