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

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

The highest paved road in North America winds its way up Mount Blue Sky in Colorado to an altitude of 14,130 feet above sea level.

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

A gothic church spire sits atop this skyscraper, the tallest church in the world.

This museum celebrating the almighty dollar lets visitors literally stand in the shadow of a million bucks.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

This alley in downtown Chicago held the bodies of over 600 people after the fateful Iroquois Theatre fire.

This memorial plaque remembers a strangely shallow maritime disaster known as "Chicago's Titanic."

The iconic Chicago sculpture hides a beautiful and easily overlooked plaque on the backside.

Chicago's Navy Pier on Lake Michigan was a training hub for aircraft carrier pilots during WWII.

A shining sculpture made of 3,115 lights, the number of visible stars in the Northern Hemisphere.

Fragments of architectural wonders from around the globe are embedded in the newspaper building's walls.

A clone-tree in Washington Square Park sprung from seeds that went to the Moon and back.

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

This historic old movie house was the scene of one of the Blob's most iconic attacks.

An eccentric priest's tribute to George Washington, this chapel tells the story of the American Revolution.

A small chapel celebrating the spiritual bond between dogs and humans.

A New England curiosity cabinet, one hundred years on.

The monument dedicated to Phineas Gage in the town where his accident happened.

Antique gaffe kept in the basement of a small Vermont natural history museum.

A treasure trove of rare and fine fabrics from around the world.

These mysterious petroglyphs in Vermont reflect a troubled history in the treatment of Native American culture.

According to folklore, Vermont's slanted windows were installed to keep witches from flying into the house.