We went to the science museum to see the Titanic Artifact Exhibit [http://www.casciencectr.org/Exhibits/Weingart/Titanic/Titanic.php] This was a show of all manner of objects brought up from the wreck, from a big piece of the hull, down to playing cards and hats. It was all very fascinating to see.
Afterward, we walked over the the newly-reopened Aerospace Hall and saw the Gemini 11 spacecraft and other relics of the Space Age.
Finally, we went out to the Rose Garden in Exposition Park for a while before heading home.