A unique botanical garden housed in three giant geodesic domes.

A giant, Gilded Age mansion that once belonged to the beer baron of Milwaukee.

The park is home to the United States's only still-operating Dutch windmill.

Largest tulip festival in America, includes fireworks, a parade, and a carnival.

A chilling disappearance (and rescue) of a child uncovers a geological mystery.

The longest structure of its kind ever built in Michigan.

A concrete block embedded with thousands of pulled teeth was created by a local dentist to memorialize his dog.

This museum collects over a century of automobile history including the iconic car from The Muppet Movie.

Fiji mermaids, mummified remains, and recreated cryptids are among the morbid oddities at this Maryland museum.

What began as an art installation is now the private drinkhaüs for a brewery's employees.

A Japanese temple, old German townhouses, and public chess tables offer a peaceful escape from the bustle of the North Side.

These pretty kitties killed and ate as many as 135 railway workers.

The 606 is a decade in the making.

First planned industrial community in the United States.

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

The site of the first couple's first kiss is commemorated by the most adorable presidential monument ever.

This unauthorized stone mermaid was secretly carved out of public stone before being permanently preserved.

An enormous park-like oasis, full of famous Chicagoans' graves.

This tiny, painted door at the base of a tree stump has been a fixture of the Harvard University campus for decades.

This 1830s store is believed to be the site of Harriet Tubman's first stand.

Historic home of America's sweetheart sharpshooter, Annie Oakley.