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

For millennia, explorers were obsessed with discovering the source of the Nile—is this small mountain stream really the answer?

This century-old site established by King Mwezi Gisabo preserves the art of Burundi's ancient drum rituals.

Amidst political unrest, this Roman Catholic Cathedral has helped organize peace talks.

Built by a North Korean team this monument to African dictator Laurent Kabila has a suspiciously Kim Jong Il shaped body.

The tallest building in the Republic of the Congo is a source of pride despite its towering maintenance costs.

A crypt believed by many Congolese to be a center of black magic.

This former wildlife sanctuary is being transformed into an art park.

A hidden garden of stones engraved with scriptures, a Joseph Smith Sphinx, all carved by one man.

Visitors to this library are in for a real-world education in modernist architecture.

The remote island home of the overlooked explorer who co-discovered the theory of evolution by natural selection.

The busy transport hub is home to the tallest airport slide in the world.

Holy Hindu shrine in an enormous, monkey-filled limestone cavern.

The wing of this deserted Boeing 737 almost touches the Dunkin' Donuts next door.

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

Ancient serpentine sacrifice holder that has stood the test of time.

The Avenue of Mausolea is a series of grand palatial tombs.

Light still pours into the ruins of this ancient Islamic observatory.

Ancient barriers wrap around what was once an important stop along the Silk Road.

An underground world of gorgeous, palatial metro stations designed as a nuclear shelter complex.

This Soviet statue is based on a piece of propaganda that's been elevated to national myth.

In Kazakhstan, a colorful cathedral with many lives once survived the most powerful earthquake in the region.

Beatlemania is still going strong... at least in Kazakhstan.

In 1847, Brigham Young climbed this hill to survey the Salt Lake Valley and saw a fine place to build a city.