The famous bell was secreted away and hidden in a church in Allentown during the British occupation of Philadelphia.

The internal railway of one of the biggest steel plants in America has been transformed into a linear park with unique industrial views.

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

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

World's first "penitentiary," meant to be humane, drove men insane.

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

Controversial tribute to the heavyweight champion boxer who grew up in Detroit.

These enduring murals depicting a distinctly Marxist tribute to capitalism could not even be defeated by McCarthyism.

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

This public baseball field is a beloved remainder from of one of the most historic stadiums in the country.

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

The only surviving prototype for Buckminster Fuller's house of the future.

A sealed test tube said to hold Thomas Edison's dying breath was given to the inventor's friend and mentee, Henry Ford.

The 80-foot tire that looms over Michigan's I-94 was once a Ferris wheel in the New York World Fair.

Lovingly nick-named the "Brick Dick" this municipal tower was winner of the World's Most Phallic Building Contest.

These grassy undulations on a stretch of University of Michigan campus aren't bad landscaping, they're art.

Center filled with hands-on displays served as a tribute to several astronauts with connections to the state.

This mechanical wonder towers above a river in Michigan's capital city.

Perched atop a brick smokestack, this enormous lug nut symbolizes the local minor league baseball team.

A horse-drawn 1858 steam pumper fire engine encased in glass on the front lawn of a Michigan insurance company.

A park and memorial dedicated to the victims of the deadliest school massacre in American history.

The 28-foot granite map plots the locations of 40 theaters in New York City.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

There must be a pun in this haystack somewhere...