See gardens, woodlands, wetlands and prairies in a tram tour. 60-minute and 30-minute tours explain the rich Arboretum history, and describe the trees and plants you'll see. There's also an opportunity to see lovely wildlife in a native habitat.

The new Railway Garden, a G-gauge model railway running through a 2.5 acre site, opens April 30. Visitors enter through a 1920s-era railway depot to see trains running through a garden of miniature plants, water features and a variety of landscapes. May 1 through October.

Bring your binoculars and join a naturalist to enjoy the spring migration. Visit the best birding spots at Sand Ridge Nature Center and check out the once-a-year best color showing of warblers and other migratory birds. Binoculars available for loan. April 3-May 8.

Montreal's DynamO Theatre performs acrobatic theater. In Mur-Mur, a wall, with its graffiti and its secrets, alternates as a playground and refuge for five young characters. Performances are May 6-12.

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.

Collage a caterpillar, print with fruit and fly around in butterfly wings while developing a taste for literacy. Pre-registration and pre-payment required.

A special exhibit on the history of Girl Scouting, with special focus on Oak Park, River Forest, and Forest Park. Celebrate the 100th anniversary of the founding of the Girl Scouts of the USA.

Exhibit tells the story of Girl Scouting and Boy Scouting in America.

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.

Features a selection of jades used at the table, in the studio and as personal adornment. Qing Dynasty China produced exceptional carving for a growing jade market.

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.

Part of the 13th annual Stages, Sights & Sounds, performances run May 3-12. The story is told by King Lear's closest companion--his fool. Uses exuberant storytelling, music and film. Purchase tickets at (312) 494-9509 or chicagohumanities.org.

Performances run most Tuesdays through Saturdays at 10 a.m., and added performances March 27, 29 and 30 at 12:30 p.m. 

Exhibit includes bats, uniforms, contracts, team traveling suitcases and much more from Reggie Jackson. Items in the exhibit are presented in collaboration with the Mr. October Foundation for Kids, a non-profit organization to benefit at-risk children.

Chicago-area John Madormo visits to read from and sign copies of his debut mystery for kids, "The Homemade Stuffing Caper: Charlie Collier, Snoop for Hire."