The home and studio of a visionary woodworker now stands as a museum and example of his artistic genius.

A historic arena where the Beatles played their first concert in the U.S.

Bar full of oddities, specimens, artifacts and homages to the great dime museums of the past.

The privately owned cemetery that holds room for Washington's finest when they step down from life.

The United States Capitol's former columns still stand.

This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.

A much-maligned monument to teetotalism.

The most decorated dog of World War I is preserved in the Smithsonian.

A heroic pigeon that, through a barrage of gunfire, delivered a message that saved over 100 lives in World War I.

Decades before the scandal, this staircase on the river was a literal "water gate."

This lonely waterfront memorial to the men of the Titanic was erected by the "Women of America."

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

This stately building in Alexandria, Virginia was built by Freemasons to honor one of their most famous members.

A former major munitions plant that has been converted into a sprawling art space.

America's first federal monument.

This fort down the Potomac from Washington, D.C. was once the only defensive fort protecting the capital.

Yo, Adrian!

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

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

Current docking place of the SS United States, the fastest transatlantic ocean liner.

A layered tribute to the work of mosaicist Isaiah Zagar.

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

Formerly known as National D-Day Museum, this collection commemorates the battles of Normandy and WWII.

This relatively recently abandoned brewery is a tragic reminder of the continuing effects of Hurricane Katrina.