St. Petersburg Museum of History closes its juried Diversity in Aviation art exhibit — which features aviation paintings by middle school, high school and nonprofessional adult artists — with free admission for Florida residents and a program of aviation videos and talks by experts like keynote speaker/NASA electrical engineer Louise Kelba. The day culminates with an awards ceremony, with prizes awarded by judge/Arts Center Education Curator Amanda Cooper. 10 a.m.-4 p.m., 335 Second Ave N.E., St. Petersburg, 727-894-1052, spmoh.org.