Velo Theatre presents this performance from May 2-9. Laden with letters and packages to deliver, a postman sets out on his bicycle. Opening one of the packages, he discovers a fantastic and magical world inside. Purchase tickets at (312) 494-9509 or chicagohumanities.org.

Children can immerse themselves in backstage preparation, perform routines in center ring or manage the behind-the-scenes action of lights and sound. Plus, try making a circus balance toy or dress up like a clown.

Through the discovery of exoplanets, we have learned our solar system is not alone in the universe. IN this new space show, learn how, with new instruments like the Kepler Telescope and rapidly improving technologies, the discovery of exoplanets puts us one step closer to finding an Earth-like world.

Learn about the American bicycle and Chicago's bike culture. The exhibition details the roots of America's most democratic and sustainable form of transportation and considers why human-powered locomotion could be the way of the future for our rapidly evolving urban environment.

Visitors go on an interactive journey through the world of ancient Greece, where they can meet the gods, experience ancient Greek daily life and interact with the epic poem The Odyssey through more than 25 engaging interactive components, including climbing into a 13-foot tall Trojan Horse. Kids play and learn as they navigate rocky caves and open seas on "The Odyssey: A Hero's Journey" and e-mail home their Hero Record, belt tunes in the Sirens Karaoke Cave, discover which Greek god they are most like, match wits with Aristotle in a game of 20 questions, test their arm wrestling prowess in the Gymnasium and marvel at a working replica of the Antikythera Mechanism, believed to be the world's oldest computer.

Watch men painted blue do unusual performance art and original slapstick comedy. It's fun to sit in the front, but remember to wear a plastic poncho to avoid the flying food and liquids. Buy tickets at the box office, online, via Ticketmaster or by calling (773) 348-4000.

From superheroes to undersea adventures, princesses to dinosaurs, Storytown takes children on an interactive, improvised adventure. The actors use kids' suggestions and ideas to create a different story each week. Kids design the setting and help shapes the story. Runs through the end of February 2013, then moves to Stage 773 in Chicago.

Follow the captivating story of Jean Valjean as he struggles with the concepts of truth,  justice and redemption. This production spotlights the Studio BE Company Youth Ensemble and features the Studio BE orchestra. Performances at 7 p.m. May 4, 5, 10, 11, 12 and 3 p.m. May 6.

Join the antics of Brian Posen, Brian Peterlin, and Tim Soszko in their all silent comedy antics every Saturday. For tickets call the box office at (773) 327-5252 or visit www.stage773.com. Runs March 30-June 30.

This concert series is specifically programmed for families and their children. For more information, visit www.saintjamescathedral.org.