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.

Interactive story time and fun crafts indoors before heading out on the grounds for a winter walk. Themes change each week. Wednesdays and Fridays.

Celebrate the day with a wide variety of demonstrations, garden and grounds tours, a plant sale, and children's activities. Watch Taltree's arborists climb the ancient Signature Oak tree, or get an overview of the art of Bonsai. Find out how to care for your garden tools, learn how to create a mixed planter for cacti and succulents, or get some rose care advice from the Duneland Rose Society.

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.

Enjoy the chance to visit the Museum of Science and Industry after dark. Participate in science activities and make science toys, go on a scavenger hunt and unroll sleeping bags next to a 727, giant heart or steps away from a toy-making factory.

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.

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.

Event includes dancing, super special activities and live appearances by superheroes. Also includes refreshments and a keepsake photo. Capes and costumes are welcome.

From Fannie May to Brach's Candies, Tootsie Rolls, Frango Mints, Lemonheads and more, Chicago has a tasty history of making candy loved the world over. Learn about Chicago's sweet history and how candy and the City of Chicago grew up together. May 11-Sept. 18.

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.