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

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

This 600-year-old home seems to defy physics.

A stunning two-story timepiece within a medieval Brick Gothic church.

Exploring the wilder, more passionate sibling of Erg Chebbi feels like discovering a secret sun-kissed planet from another galaxy.

An awe-inspiring mosque in Morocco with one of the tallest minarets in the world.

God's Saharan sandbox of wrath.

A fortified city, home to a remaining population of five families

The other side is actually green.

One of the most spectacular canyons in the world.

An exquisite and eclectic selection of African masks stands out within a massive woodcarving marketplace.

The Voodoo Superstore of the world.

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

Dozens of snakes are housed and worshipped within the walls of this Vodun temple.

Africa's Venice on stilts.

These barriers stand as stark reminders of Northern Ireland's troubled past.

It was once nicknamed "the most bombed hotel in Europe."

Belfast's namesake river still winds below the city center, hidden from sight.

The ship built to ferry passengers and goods to the doomed Titanic is now the last remaining White Star Line vessel.

A museum marks and documents the site of the Titanic's launch.

This Victorian-era public house has set the standard for pub-style elegance for over a hundred years.

The ruins of this medieval castle in Northern Ireland have inspired artists from C.S. Lewis to Led Zeppelin.

Northern Ireland's Brobdingnagian stepping stones.

These imposing walls and towers look more like the ruins of a fortress than a monastery.