An old abandoned mining town in The Adirondacks where Theodore Roosevelt first learned of the shooting of President William McKinley.

The absurd creation is a compulsory destination for selfies in Buffalo.

A deteriorating 1990s Girl Scout camp in a beautiful lush park on Lake Ontario.

A reversed traffic signal that was once violently misinterpreted as a statement on British-Irish relations.

This Art Deco fortress in upstate New York gives Manhattan's vaunted examples of the style a run for their money.

Surprisingly aquamarine waters fill deep lakes formed at the end of the last ice age.

An upstate New York garage advertises its services by literally putting the automobile above all else.

An overlooked memorial honoring the local Washington residents who died in World War I.

There’s a hidden military meme engraved on the World War II Memorial.

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

The winding route passes through an enclosed alleyway, two tunnels, and leads to the White House basement.

This stunning blue and gold room changed cities twice before becoming part of the Smithsonian.

It was once the base for a series of domestic terror attacks.

One critic described it as "middle Mussolini, early Ramses, and late Neiman-Marcus." Another called it an architectural "natural disaster."

Fittingly, America's museum of architecture is itself a magnificently designed old building.

A little marble compass above George Washington's (empty) tomb in the Capitol marks where D.C.'s four quadrants intersect.

Rumor has it the uncarved lump behind the three famous suffragists is reserved for the first woman president.

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

Members of Congress have traveled between the buildings on Capitol Hill for a century hidden from tourists, press, and storm clouds.

A 1,100-ton train fell through the floor in 1953. Workers got it patched up in just 72 hours.