This former royal palace with gorgeous gardens became the first museum in Morocco.

The other side is actually green.

Traditional 11th-century outdoor tannery.

Thousands of narrow alleyways in an ancient medieval city make up what's believed to be the world's largest car-free urban zone.

The oldest known university in the world is in Fez, Morocco.

This no man's land slicing through the island is strewn with abandoned relics of another time.

The ruins of a fairytale castle with a tumultuous history stand high atop the mountains.

Once part of an ancient international harbor, it's now an all-you-can-eat shrimp buffet for flamingos and other water birds.

The ancient mosaics here are considered among the finest in the world, and serve as a stunning record of Greco-Roman daily life.

Breathtaking Byzantine paintings cover the inside of this 12th-century church.

The largest self-built castle in the U.S., six decades in the making.

Climb to the top of this spiritual tower, and you'll be rewarded with spectacular views.

When ecosystems collide in the arid Southwest.

The scene of one of the darkest moments in American labor history has been left essentially untouched since the tragedy.

An antique narrow gauge railway line still running through the Colorado and New Mexico mountains.

This spectacular track has run continuously since 1882.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

This restored 17th century synagogue is one of the few remaining structures in Morocco’s ruined Jewish quarters.

Enjoy fresh-baked bread and fish from a repurposed Portuguese fortress.

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

At this faithfully preserved medina off the Moroccan tourist circuit you can walk through six centuries of history in one day.

Mosaics, storks, and brothels—this ancient city has it all.

One of the tallest waterfalls in Africa is also home to a population of monkeys who enjoy the waters and the occasional guest.

One of the most spectacular canyons in the world.