Mythbusters: Behind the Myths: They just remodeled the USF Sun Dome, so serious geeks Adam Savage and Jamie Hyneman probably won't blow up anything in this live show. Or will they? They will do experiments (fans can join in!) and tell behind-the-scenes stories from the popular Discovery Channel series Saturday in Tampa. $38-$200. (813) 974-3002.
Register to vote: If you want to vote in the general election on Nov. 6, you must register by Tuesday. Go to election.dos.state.fl.us.
Giuliana and Bill Rancic: The USF Lecture Series brings the E! News host who waged a very public battle with breast cancer and infertility, along with her Apprentice winner husband, for a free talk Tuesday at the college's Marshall Student Center in Tampa.
Oktoberfest Tampa: This three-day party at Curtis Hixon Park in Tampa has singing, dancing, live music and beer, plus games like stein holding and keg toss. Runs Friday through Sunday. $8, $20 weekend, $45 VIP. (813) 397-8722.
Andrew Bird: Why, yes, he is known for world-class whistling. But his concerts also show off his mastery of violin, guitar and glockenspiel, on Tuesday at the Straz Center in Tampa. $32.50. (813) 229-7827.
Florida Orchestra: The season opens with Beethoven to Bernstein, with pianist Sara Davis Buechner exploring Bernstein's Symphony No. 2, the Age of Anxiety. The concert also includes Beethoven's Coriolan Overture. Shows are Friday at the Straz Center in Tampa, Saturday at the Mahaffey Theater in St. Petersburg and Sunday at Ruth Eckerd Hall in Clearwater. $15-$45. (727) 892-3337 or toll-free 1-800-662-7286.
Zombie Pub Crawls: If you dress like a zombie, then it looks like you meant to stumble from bar to bar. There are two crawls Saturday. One starts at Irish 31 in Tampa ($25, $120 for six; sohozombiecrawl.com) and includes drink specials and costume contest to benefit Make a Wish Central and North Florida. The Jolly Zombie Trolley runs 4 to 8 p.m. The other one starts at and benefits Creative Clay in St. Petersburg, with themed drinks, contests and scavenger hunt. $40; (727) 458-9839.
Kids and Family
Pool Egg Haunt: Kids 12 and younger can dive for orange and black eggs Saturday in the pool at the St. Pete Beach Aquatic Center. Trick-or-treating on the pool deck afterward. $4. (727) 363-9245.
More to explore
Enter to win prize packs to Busch Gardens' Howl-O-Scream and Universal's Halloween Horror Nights at tampabay.com/things-to-do.