For those with no fear of heights: a skywalk 4,700 feet up on a Chinese mountain.

A total of 999 stairs lead visitors through a massive hole in a mountain known as the Gateway to Heaven.

This vertical pinnacle in China was the inspiration for the floating mountains in the movie “Avatar.”

Prowl through this sprawling bazaar under a massive Soviet-era dome for delicious eats.

The world's second-tallest flagpole stands proud despite dropping rank.

Twice a day a speeding train passes only inches from the homes of this residential neighborhood.

The unique building practices of the Batammariba reflect the community's deep reverence for and connection to the earth.

The Voodoo Superstore of the world.

Formerly known as the Malay Quarter, Bo Kaap is a colorfully-painted suburb located in the “Mother City” of South Africa.

This road winds through the steep coastal cliffside offering spectacular views for those who brave the drive.

A memorial to the only dog ever officially enlisted in the Royal Navy.

This small monument marks the divide between the Atlantic and Indian Oceans at the southernmost tip of Africa.

The oldest building in Hargeisa survived the 1988 bombings that destroyed some 90 percent of the city.

Dine on roast goat inside a scrapped 1960s Soviet airplane.

This cave located in the badlands of Somaliland contains some of the oldest cave art in Africa.

A MiG-17 fighter jet sits atop this memorial to the indiscriminate bombardment of Hargeisa.

An enormous public square and parade ground built to celebrate Ghana's independence.

Where thousands of slaves passed through the "Door of No Return."

Ethiopian standing stones featuring remarkably preserved carvings of swords and people.

A salt lake dotted with steaming limestone chimneys.

Rimmed by white crusts of salt on every edge, Lac Assal is one of the saltiest bodies of water in the world.

A giant chameleon, with a fascinating purpose.

A monument to the more than one million enslaved Africans deported from the port of Ouidah.

Africa's Venice on stilts.