Elevated freight railway turned wildly successful urban park.

A propulsion engine testbed that paved the way for the Space Shuttle launch sits without recognition at this rocket center.

It may look like no more than a full-scale model, but every part of this full Space Shuttle stack had a working role in aviation history.

Bananas are often left for the first monkey America ever recovered alive after being launched into space.

The only depiction of Abraham Lincoln holding a weapon, and the names of all 9,000 Cuyahoga veterans of the Civil War.

Marvel at this turn-of-the-century masterpiece that has been turned into a rather stately supermarket.

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

The angel of death appears to weep black tears at this grave marker.

This advertisement for talcum powder was painted on the rock face and has since defied removal.

Built in the 1850s, this church was of the first five churches constructed in Harper's Ferry.

This shale formation along the Appalachian Trail once inspired the third president of the United States.

This statue honors the author's groundbreaking family story.

A Maryland museum dedicated to Black history, housed in a historic church.

What began as an art installation is now the private drinkhaüs for a brewery's employees.

This elaborate towering structure was once famed for its revolutionary height.

Found art has transformed this Pittsburgh neighborhood into a psychedelic dream.

A model of a dinosaur that was named for Andrew Carnegie stands outside the museum that also bears his name.

With 3,000 bikes on display, the world's largest bicycle museum includes some famous rarities.

Golden and naked, the figure that was once the highest point in New York is all that remains of the second Madison Square Garden.

A tour de force of a fountain, memorializing a man who loved fountains more than anything else.

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

Yo, Adrian!

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

“Live hard, ride fast, eat pizza” at this joint filled with Evel Knievel memorabilia.