The giant stump of the once towering cottonwood where Ute people held tribal meetings.

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

The final resting place of American icon Buffalo Bill, and a museum that aids in telling his tale.

Each year, teams of the world's best snow sculptors have 65 hours to create frozen masterpieces.

It would be easy to walk past this unusual piece of art and have no idea it pays tribute to the odd life of a real chicken.

A downtown park built on top of unclaimed graves.

Located at the former Lorton Prison the Lucy Burns Museum tells the story of the 91 year history of the prison including the dark chapter of its involvement in the women's suffrage movement.

This unacceptably tall building was the real reason for Washington, D.C.'s skyscraper ban.

Eighteen miniature death-scene dioramas.

This grisly headstone doesn’t seem to be resting in peace.

A brass plaque dedicated to a convicted cannibal hangs in the National Press Club, and that's not even the craziest part of the story.

A 200-year-old bar with a cheeky name claims to have served Edgar Allan Poe his final drink.

A faded sign from the 1920s remembers Baltimore's resistance toward banning alcohol.

Erected in 1697 this Philadelphia bridge is the oldest surviving roadway bridge and perhaps the oldest stone bridge in the United States.

One of the oldest of its kind.

Ant sculptures march up the side of what used to be an iconic spot in punk rock lore.

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

This forgotten building was one of the few Philadelphia-area breweries to survive Prohibition.

The humble field where the first Major League Baseball game was played.

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

The oldest building in the District of Columbia was preserved because of a mistaken connection to George Washington.

A lawn full of retired spacecraft on display at one of NASA's first research labs.

After his presidency, George Washington planned to live only a few blocks from the Capitol building.

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