Once the site of a Native American harvest festival, this humble clearing later played an invaluable role in the birth of jazz.

A small park on Bourbon Street features life-size bronze statues of New Orleans musicians.

The only rotating bar in New Orleans has been slowly spinning since 1949.

The South's nickname was supposedly born at a former bank in New Orleans' French Quarter.

This New Orleans statue of a portly figure in a goofy hat pays homage to a classic of satirical literature.

After the oysters have been shucked, and the restaurant's been shuttered, the terrazzo sidewalk from the 1940s is all that remains.

The beautiful, fruit-covered facade hints at this building's former life.

This now-deactivated naval base defended the Florida coast for centuries.

Created in 1972, the famous sculptor's intricately detailed monument to San Francisco is overflowing with city landmarks.

The Flatiron Building's storied West Coast cousin is a lot more into religion.

The newsstand that never closes its doors—well, almost never.

A massive ultra-modern church presents a science-fiction view of Catholicism's inclusive future.

A hidden gem on the lawn of the U.S. Capitol Building designed by landscape architect Frederick Law Olmsted.

This rare triple-jurisdiction drawbridge passes through Virginia, Maryland, and Washington, D.C.

A street in front of NASA's D.C. headquarters has been named in honor of the Black women who were essential to early spaceflight.

The seat of the lost Ryukyu Kingdom has survived numerous fires and wars over the centuries.

This cannonball stands as a reminder of the final act of a fleeting governor amidst a revolution.

This unique historical monument features large concrete spheres designed to resemble fallen stars.

At 207 feet, one of the world's longest continuous escalators.

Before Metro, Washington had a robust streetcar network—and you see the remains of this infrastructure if you know where to look.

The oldest Roman lighthouse still in use.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

Outsider art meets paleontology at this roadside reptile repository.