When flour explodes, it's not a pretty sight.

This unusual public park, which contains an eclectic mix of industrial remains from the 19th century, originated as an archaeological dig in the 1980s.

This 1960s kinetic artwork has been restored and is once again whirling away in downtown Minneapolis.

A bronze statue on a downtown corner honors Minneapolis's favorite career gal.

Downtown Minneapolis mixed art and function by turning some of their sewer covers into works of art.

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

The palatial McDonald's that inspired Wesley Willis.

Illegal drag racing two stories beneath Chicago’s streets.

The last masonry skyscraper ever built reveals a transitional moment in architectural history.

Louis Sullivan’s dark, swirling cast-iron designs envelop a popular department store in this Chicago landmark.

A lone traffic cone perched on a ledge has remained unmoved since at least 2011, unofficially earning the status of a tiny Chicago landmark.