In Chicago, a pizza-enthusiast has opened a museum dedicated to the history of pizza.

A hot dog stand where the heads are just as hot as the dogs.

The world's only known button museum.

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

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.

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

A lush green oasis in the middle of Chicago.

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

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

With its webbed walls and bright red coloring, Calgary's iconic bridge looks like a finger trap puzzle stretched across the river.

Detroit’s Eastern Market has been transformed into an outdoor museum with colorful murals that address social issues and symbolize the city.

The world’s largest Masonic temple was saved by the White Stripes.

A Beaux-Arts triumph set to become Ford's innovation campus

One man's attempt to create an artistic wonder on a run-down block in Detroit.

A wacky two-story folk-art assemblage of carved and found objects, with lights, motion, and sound now in need of financial support.

Berry Gordy Jr.'s old home was the original headquarters of Motown Record Corporation.