The former home of Thomson Francis Mason, the mayor of Alexandria from 1827-1830.

A superbly preserved example of Georgian residential architecture that was once home to one of the founders of Alexandria, Virginia.

This pharmacist and his patient greet visitors to the National Community Pharmacists Association.

Once the largest trading firm of enslaved people in the U.S., this building is now a museum that preserves Alexandria's dark past.

Long buried under the 20th-century landscape, this lift lock of the Alexandria Canal is the lone remnant of an ambitious early American transportation project.

This twice-relocated "Usonian" home is among the smallest built by master architect Frank Lloyd Wright.

A massive, majestic mammal watches over pedestrians from his perch atop a former B.P.O.E. lodge.

The only one-room schoolhouse remaining in Talbot County, Maryland.

This one-room schoolhouse played a significant role in the education of Black children for almost 100 years.

The elevator hidden in a smokestack on Roosevelt's yacht now serves as a monument to the former president.

Explore the legends surrounding these mythical sea creatures inside this museum.

The Decoy Capital of the World.

Historic home of America's sweetheart sharpshooter, Annie Oakley.

This 1830s store is believed to be the site of Harriet Tubman's first stand.

A Civil War Museum with some notable medical antiques.

This futuristic building is yet another architectural wonder in Dubai.

The world's largest frame offers spectacular views of the city's past and present.

On any given day this sprawling market houses literally tons of government-regulated gold, gems, and precious metals.

A preposterously luxurious hotel with gold-plated iPads, Rolls Royce chauffeurs, and a staff that trains by watching "Downton Abbey."

Billed as the "largest natural flower garden in the world" this Middle Eastern show field has little competition at 45 million flowers.

This artificial archipelago was supposed to resemble a map of the world.

No building in the world leans as far as the so-called “Leaning Tower of Abu Dhabi.”

The world’s largest LED display, built over an F1 race circuit.

Whitewashed mosque contains the world's largest carpet.