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

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

A physical reminder of Earth's ancient past, this rock results from the photosynthetic processes of some of the oldest forms of life.

This midcentury chapel is a bold architectural statement and a symbol of Indiana's Lutheran heritage.

The longest structure of its kind ever built in Michigan.

A memorial to the Potawatomi chief who allegedly ran nearly 150 miles to alert settlers of an impending attack.