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

In Zanzibar, a historic 19th-century palace is a reminder of the world's shortest war.

Freddie Mercury's childhood home is now a monument to the iconic Queen rockstar.

Human ancestor’s 3.6 million year-old footprints.

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

This rare volcano spews the strangest and (literally) coolest lava in the world.

Stunning ruins of what was once the center of one of the greatest empires in East Africa.

Each spring this woodland floor is carpeted with purplish flowers as far as the eye can see.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

Numerous impressive carvings are embedded in the trees lining this street in Marrakech.

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

Every year locals tumble 650 feet down to the bottom of the hill chasing a Double Gloucester cheese.

Deep in the countryside lie the remains of one of the grandest Roman dwellings in Britain.

It's possible to walk inside one of the largest Neolithic tombs in Britain.

There are hundreds of secret WWII bases hidden in British forests. Built to fight a Nazi invasion, they remained unknown for decades.

This enormous secondhand bookstore inside a Victorian train station sparked the "Keep Calm and Carry On" craze.