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

A mud brick kasbah with a history of lavishness and traitorship.

Deliberately hidden for centuries, the magnificent Saadian Tombs were eventually uncovered in 1917.

Along the most northwestern point in Africa is an ancient cave surrounded by legends.

Founded as a refugee camp, now a popular tourist spot.

A century-old stone hermitage overlooks this remote pass in the Hoggar mountains, surrounded by a landscape of eroded volcanic cores.

The original resting place of Queen Cleopatra and Mark Antony's only daughter.

The abstract sandstone rock formations at this Algerian national park are rich with prehistoric art.

A preserved oasis with traditional Andalusian-style architecture and beautiful views of the Nile.

In a quiet north Chicago neighborhood rests a stunning relic of the golden age of earthenware design.

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

A chance to follow in the footsteps of the word's most legendary animator.

Home to a protest movement, a bombing, and a dramatic change in labor history.

A century-old hotspot for jazz, frequented by everyone from Charlie Chaplin to Al Capone.

Keshwa chaca, among the last handwoven Incan bridges, crosses Apurimac Canyon in Peru.

The only Native American comic shop in the world.

A trail weaves through the verses of a poem illustrated by stone sculptures inspired by Native American pictographs.

A winding medieval path was used by mourners to carry their dead to the nearest church.

A series of 33 stone markers maps an ancient 55-mile transportation route.

A dictator's failed public works project has been reborn as two linked trails through spectacular scenery.

The longest non-mortared wall in the country is one man's tribute to his displaced Yuchi ancestor's five-year journey to her homeland.

Walk a trail through a historic Quaker town that outlawed slavery in 1777 and was a major waypoint on the Underground Railroad.

A breathtaking 19th-century trail overlooks Lake Tahoe.

This trail follows unique stone railroad tracks and a historic waterway to the south coast of Devon.