The official atomic museum of the United States explores the explosive and productive history of a much maligned energy source.

Site of the greatest known waterfall that ever existed.

A monument to the art of slicing people open.

No one knows how many bodies are in this vault in a Chicago public park.

Honoring the star of the “The Bob Newhart Show” which took place in the city of Chicago in the 1970s.

A 400-foot-tall tall map of Chicago makes this once-ignored building stand out.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

Once at the center of U.S. finance, the historic Trading Room was meticulously recreated piece by piece and rebuilt in the Art Institute.

At Chicago's revered Field Museum, visitors are invited to learn about and literally explore DNA.

In 2004, a Dave Matthews Band tour bus dumped 800 pounds of waste off a bridge and onto an unsuspecting tour boat below.

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

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

This massive airship factory is so large that it has its own indoor weather.

Found art has transformed this Pittsburgh neighborhood into a psychedelic dream.

With 3,000 bikes on display, the world's largest bicycle museum includes some famous rarities.

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

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

A jukebox headstone marks the grave of the Cleveland disc jockey credited with coining the term “rock 'n' roll."

A dazzling display of lights and crystals.

Medical history museum featuring a lovely doctor's office from the 1800s.

This little museum in the town where zombies were born celebrates the living dead.

The Paul Bunyan of the steel industry.

This giant, rotating globe was built to celebrate the expansion of a company that makes steam cleaners and pressure washers.