The location of this historic castle was inspired by a donkey.

The ruins of this gorgeous clifftop castle look like something from a fantasy novel.

This tiny, tranquil Senegalese island serves as a powerful symbol of the Atlantic slave trade.

Despite a fraught and controversial history this African island holds a powerful monument to the tragedy of the slave trade.

These homes carved into the mountains seem to defy the laws of nature.

The central mosque of this Mali town is entirely built from mud.

The Voodoo Superstore of the world.

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

The most biologically diverse protected area in Africa is also the most dangerous.

The burial ground of four Buganda monarchs was nearly destroyed by a devastating fire.

Kenya’s oldest town is more than 700 years old and home to 6,000 donkeys.

Ancient Egyptian relief, claimed to depict an electrical light.

One of its engravings is believed to be among the first representations of medical and surgical instruments.

The largest known Ancient Egyptian obelisk.

These Egyptian statues have survived for 3,400 years and were an acoustic wonder of the ancient world.

Ozymandias’ time-keeping temple.

An ancient burial ground believed to have been used for ritual sacrifice.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

One of England's most famous churches hides a pair of little known architectural treasures.

An unusual round church in London with a Templar past.

A British general, a suggestive tree, a map of paradise.

Africa's Venice on stilts.