Swedish skyscraper with a 90° twist.

The only castle in North America to ever house European sovereigns.

Frida Kahlo's childhood home, now a museum of her life and works.

An island filled with hundreds of hanging, decomposing, decapitated dolls.

This modern castle sat empty for decades before a fire inspired its builders to complete its luxury halls.

This huge clock made of flowers and simple machinery was once used a political weapon.

This national park on the shore of Lake Michigan features remarkable dunes that lie at the heart of a Chippewa legend.

A flamboyantly decorated bridge signals diversity and fellowship at the entry to Indianapolis' Broad Ripple Village.

A medical facility that has been kept frozen in time.

The palatial McDonald's that inspired Wesley Willis.

Huge abstract sculptures of the Puerto Rican Flag.

This awkward aquarium sculpture is one of the strangest statues in Chicago.

To find the "unicorns of the deep" you've got to go downstairs.

Once called the "Polish Gold Coast" it is an icon of the neighborhood that bears its same name.

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

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

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

This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.

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

This historic hotel invented the chocolate brownie.

A lush green oasis in the middle of Chicago.

A Bibliophile's Dream.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

A giant bronze coil of feces is both a tribute to doggie defecation and a reminder to pick it up.