Comic conventions, like political conventions, are places where groups of like-minded enthusiasts gather for pageantry and the revelation of a superhero to save modern times. Commune with society saviors with today’s Groupon: for $10, you get one adult ticket to the Wizard World Philadelphia Comic Con at the Pennsylvania Convention Center (a $35 value at the door; up to a $30 advance value). Up to two children 10 and younger receive free admission when they are accompanied by an adult. Choose between the following dates:

Friday, June 17 from 12 p.m. to 8 p.m.

Sunday, June 19 from 10 a.m. to 5 p.m.

The Wizard World Philadelphia Comic Con herds international artists, writers, and celebrities into the Pennsylvania Convention Center, creating one superpowered carnival atmosphere. Attendees can wander the pavilion's floor and meet their film and comic-book idols face-to-face, asking penetrating questions about their artistic processes, favorite projects, and availability to join a vigilante crackdown on line-cutters. The day’s program features events and guests, including Adam West of Batman renown, Eisner Award–nominated artist Ethan Van Sciver, and Vivica A. Fox of Kill Bill and Independence Day. Comic Con guests can dress up in comic- or movie-themed costumes as elaborate as Rube Goldberg's lamest excuse while they circulate the convention center to collect autographs, merchandise, and photos with fellow enthusiasts.