Through the decades, Black music stars have performed at this historic hub for music and the arts.

The first memorial dedicated solely to the Black troops who fought for the Union.

A gorgeous mural outside a beloved D.C. restaurant pays homage to famous Black Americans.

A surprising, but overlooked example of geology in the middle of the nation’s capital.

A celebrity from the late Cretaceous period.

First planned industrial community in the United States.

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

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

Fortune tellers, snake charmers, poets, and storytellers all gather on this historic square in Morocco.

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.

The wooden airship was the largest flying boat ever built.

Three prestigious academic collections come together to create a world-class natural history museum.

This peaceful Massachusetts graveyard was one of the first "garden-style" cemeteries in America.

Funded by John D. Rockefeller, this is one of the earliest, and most beautiful, shopping arcades in America.

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

This little-known Revolutionary War fort is supposedly haunted by the ghosts of its past.

The sounds of the world's largest fully functioning pipe organ dazzle shoppers at a Philadelphia Macy's.

Yo, Adrian!

One artist's love letter to his city and its citizens plays out across dozens of bright murals painted on the sides of decrepit buildings.

A rare view of a preserved Victorian science museum.

World's first "penitentiary," meant to be humane, drove men insane.

Early habitat dioramas and home of the elusive gaff, the skvader.

Sweden's "good old days" painstakingly re-created in a model village.