Oktoberfest Tampa: This annual celebration features live music, dancing and more than 20 events like keg toss, stein holding and cornhole. It's at 10 a.m. at Curtis Hixon Park in Tampa. $8, $45 VIP. (813) 397-8722.
Abnormal Formal: This freaky Halloween-themed party will have killer music, food, art, a costume contest, scary video art and a Dia De Los Muertos runway show at 10 p.m. It's at 8 p.m. at ARTpool Gallery, 2030 Central Ave., St. Petersburg. $20. (727) 324-3878.
Mythbusters: Behind the Myths: Adam Savage and Jamie Hyneman bring Discovery Channel's scientific series to life on stage with experiments, audience participation, video and behind-the-scenes stories. It's at 8 p.m. at University of South Florida Sun Dome in Tampa. $38-$200. (813) 974-3004.
American Horror House, 9 p.m., Syfy Morgan Fairchild is a sorority housemother who harvests the souls of coed pledges. How is that different from a real sorority again?
More to explore
Find outdoor markets at tampabay.com/things-to-do.