Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

Historic Hull Street was actually the first street with a proper name in the Boston area.

The tomb of Increase Mather and his son Cotton, influential colonial ministers obsessed with the occult.

Narrowest house in Boston.

This landmark cemetery in Boston was created more than 300 years ago.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

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

A winding district gerrymandered into the shape of a mantis.

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.

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

Part of a WWII submarine is lurking outside the Washington Navy Yard parking lot.

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

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

Washington's iconic carousel has a nice piece of Civil Rights history.

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

Home to a vast and influential collection of Shakespeareana.

A nostalgic bibliographic gem.

The Corinthian columns that towered over Abraham Lincoln’s inauguration stand proud.

Public opinion is still divided on this enormous sculpture in front of Baltimore's Penn Station.

A museum dedicated to exhibiting remarkable outsider art.

This simple convenience store sits on the location where the Ouija board was named—and has a plaque to prove it.

The man who first patented the Ouija board rests in peace beneath a headstone that playfully reflects that achievement.

The trials and tribulations of marking Poe’s grave.

The childhood home of the Sultan of Swat is just a line drive away from Oriole Park at Camden Yards.