An oft-overlooked, magically musical monolith that stands majestically between Arlington Cemetery and the Iwo Jima Memorial.

A gift from Scotland to the United States in memory of the 270 lives lost when Pan Am Flight 103 exploded over Lockerbie due to a terrorist bombing.

The rogue roots are gradually consuming some of the historic marble grave markers.

A railroad tunnel that, upon its completion, was considered one of the engineering marvels of the modern world.

A place for ship-lovers to watch the passage of freighters traversing the Great Lakes while learning about their history.

A quirky collection of outsider art made from automobile parts.

This North Carolina grave is the final resting place of the world's most famous conjoined twins.

It took 40 years to build this Eden-like garden in Marrakech, later restored by Yves Saint-Laurent.

Morocco's largest Jewish cemetery.

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

The largest copper mine in Arizona, this enormous open pit emerges from the hills like an alien landscape.

A monument stands at one of the starting lines of the Trans-Canada Highway, formerly the longest uninterrupted highway in the world.

The remains of Canada's earliest Chinese pioneers are interred along this picturesque point.

North Africa's first museum of its kind preserves the culture of Moroccan women and their artistic achievements. 

One of the two original gateways into the Kasbah, this gateway is a nesting site for storks.

The oldest monument in Marrakesh and the city's only surviving example of Almoravid architecture.

The largest madrasa in Morocco once housed more than 900 students within its exquisite walls.

Vast stretch of tide-pools with a unique Moroccan charm.

Morocco's Argania trees are infested with nut-hungry goats.

In this desolate valley resides a gorgeous set of rocks sporting a technicolor design.

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

World's largest film studio, where visitors tour the decaying sets that litter the harsh desert environment.

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

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