Most every city has its science museum, mostly oriented towards kids. The one in Oklahoma had some nice exhibits. And instead of the usual iMAX, it had a real honest-to-goodness planetarium which was pretty cool. Here are some photos from a visit.
Inside the museum
The Mercury Training suit used by Alan Shepard
A V-2 rocket
A 1927 sound movie camera and projection system. It uses a big disc like an LP record.
A collection of 19th century bicycles
US submarine periscope
A Pullman railroad travel car
A nice little collection of vintage airplanes
A Wiley Post biplane from 1935