The only presidential monument to display a late POTUS's actual casket.

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

The ruins of the suspension bridge hang over Kingsbury Run as a ghost of racial prejudice.

The home made famous by the 1983 holiday classic is now a perfectly preserved shrine to the movie.

Cleveland's giant "free" stamp is a nod to the Civil War, but was misinterpreted for years.

An unoccupied lighthouse encased in layers of ice from the waters of Lake Erie.

Knoxville’s architectural icon was the symbol of the 1982 World’s Fair, even catching the googly eye of Bart Simpson.

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

A line of blue paint marks the route of the inaugural parade.

Look closely and you’ll notice that the color changes a third of the way up the tower.

One of the most influential presidents in U.S. history wanted only this plain, elegant monument as his lasting memorial.

The hidden offices underneath Memorial Bridge have been locked up since 1976.

Once the supplier for noteworthy projects like the National Cathedral, this old brickworks now lies abandoned.

Perhaps the most scandalous statue of America's first president.

D.C.'s first central library was born out of a chance encounter with the philanthropist whose name it bears.

This imposing Masonic temple a mile from the White House was the first public library in Washington, D.C.

Contrary to popular belief, this secluded statue doesn't represent Pennsylvania's founder.

An Irish Memorial commemorating those who perished due to potato blight.

One of the oldest of its kind.

The first American axe throwing club.

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

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

One of the largest public housing complexes in New York once visited by Eleanor Roosevelt.

Pulled from the rubble of one of the worst modern tragedies, a steel crossbeam became a symbol of hope for New Yorkers.