Chicago's Field Museum is planning an exhibit designed to mark the 10th anniversary of the 9/11 terrorist attacks.
"Ground Zero 360" is to include a fragment of a steel I-beam from the World Trade Center along with large-scale, previously unpublished photographs of New York. Visitors also will be able to hear emergency response radio calls from the morning of the attacks.
The exhibit opens Sept. 2 and runs through the end of the year. It is free with basic museum admission.