Search for gnomes in the Children's Garden using your best "I Spy" skills. Checklist provided.

With small solar lights to guide their way, hikers, skiers and snowshoers can traverse the 1.3-mile fitness trail at Old School Forest Preserve in Libertyville or the 1.65-mile hilly section of the Millennium Trail adjacent to the winter Sports Area at Lakewood Forest Preserve in Wauconda. Starting Sunday, Nov. 4, the trails and adjacent parking lots will remain open until 9 .m. daily until March 9.

Feature the black bear and its adaptations for survival in the forest. Crawl into the bear's den, compare your senses to that of the black bear, feel his fur, come face to face with a black bear mount and more.

Learn more about polar bears - and what can be done to help them. The zoo offers twice-daily Arctic activities at 11:30 a.m. and 1:00 p.m. Resident polar bear Anana will be in for some extra treats, and staff and volunteers will be giving away free passes to see To The Arctic 3Dat Navy Pier IMAX Theater.

If you're looking for an alternative to skating at Millennium Park this winter, look up. Way up-94 stories, to be exact. Touted as the World's Highest Ice Skating Rink, the 94th floor of the John Hancock Center gives ice skaters a bird's-eye view of the city and the lake.

At 20 feet by 45 feet, the rink is probably too small to be your solo destination of the day, but paired with a trip to see the view from the Hancock, it's a nice way for kids to burn off energy while parents enjoy the great view. And because it's synthetic ice, skaters stay warm and don't get wet.

The rink is scheduled to be open for skating from 9 a.m.-11 p.m. through April 18. A 25-minute skate session costs $6 (in addition to the cost to get into the Hancock Observatory). You can bring your own skates or rent some there for a dollar.

See a toy so amazing, so unbelievable, it has the power to transform into anything you want it to be. Enter a world where imagination rules, and ordinary becomes extraordinary.

The exhibit features the illustrations of W. W. Denslow, a Chicago resident whose famous illustrations helped to inspire the design of the classic 1939 MGM film starring Judy Garland. The bright and colorful exhibit provides a variety of learning opportunities and hands-on activities within a three-dimensional representation of Denslow's distinctive illustrations.

Discover how sounds make music, and how music makes you feel, with activities like making melodies on bolt- and wrench-a-phones, using soft sculpture pegs to make a music box, blowing air over a reed, moving musical notes on a staff, beating percussion instruments, and creating an artistic masterpiece that reflects how music makes you feel

Learn about Chicago's two World's Fairs though the experiences of three Elmhurst residents during the 1893 and 1933-34 fairs and explore rare artifacts.

Visitors become space adventurers and set off on a journey to discover the Universe in a way never done before. Travel a billion light-years and back, fly through space, orbit the Moon, zoom into a canyon on Mars, and soar through the cosmic web where a million galaxies shower down. The experience was created utilizing real telescopic data and the best scientific imagery.

Chicago Kids Company performs the classic tale from Feb. 6-April 12.

Professor McBumble's group of traveling actor's teach the lesson's of Anti-Bullying by using fairtales as their backdrop. Performances run from Jan. 23-May 3 at various locations. Check website for dates and location schedule.

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.

Based on the book by Gary D. Schmidt, performances are 10 a.m. Tuesdays and Thursdays and 2 p.m. Saturdays from Jan. 19-March 2 (no performances Jan. 26-Feb. 2). Recommended for children 9 and older.

The Cat in the Hat is the perfect friend for a boring rainy afternoon. From games and mischief to Thing One and Thing Two, The Cat brings all sorts of trouble to this gray day--but will Sally and her brother be able to explain the mess to Mother? Performances run Jan. 26-June 9, 2013.

When happily ever after isn't what he expected, the Frog Prince heads out for a new adventure. While searching for his true amphibian self, he meets witches from Snow White, Sleeping Beauty, Hansel and Gretel, and Cinderella's Fairy Godmother. Performances run Jan. 26-June 9, 2013.

This third installment continues the marriage of classic literature to music. Students will be introduced to Blues concepts along with other contemporary music. Playwright J. e Franklin reconstructs timeless fables about morals and values that stimulate critical thinking in a setting filled with music, fun, and laughter. Showtimes are 10 a.m. and noon Monday-Friday from Oct. 29-June 14. Summer performances are June 24-Aug. 2.

Teenage DeShawn goes from making exceptional to poor grades in a matter of months due to the violent death of his best friend and the break-up of his family. Presented in collaboration with the University of Chicago Urban Health Initiative, this performance examines the need to recognize signs of depression in youth due to family disintegration and violence. Performances run Oct. 29-June 14.

Performances run from Feb. 17-March 10.

Explore different stations while experiencing interactive fun. There will be time to play games and use the popular preschool fitness station where children test their strength and endurance on a treadmill, weight bench, cycle and elliptical machine. The snowball room will be back.

Interactive play group with caregivers and children of all abilities in an inclusive setting. Program focuses on social interaction, fine and gross motor development and sensory integration.

Exhibition highlighting the culture of illustration through the talented cartoonists, illustrators and voice actors connected to the Geneva community. Features well-known artists such as Daws Butler, the voice of Yogi Bear and many Hanna Barbera characters, along with Chester Gould, creator of the Dick Tracy comic strip.

Geared toward children with special needs, especially kids who may have a hard time sitting still or focusing in big groups. Sensory Storytime is followed by a new playgroup with sensory activity stations for kids and caregivers to explore together. These free storytimes, best for ages 2 to 6, are offered on Tuesdays at 4 p.m. at the Main Library, 834 Lake St. No advanced registration is required. Sensory Storytimes include stories and songs as well as large and small movement activities. A picture schedule is used in the front of the room, and individual schedules, fidget toys, and bean bag lap weights are available. Caregivers are required to be in attendance. Sensory Storytimes are 20 to 30 minutes long, and the sensory activities will be open for 30 minutes after the storytime ends. For more information, email sharris@oppl.org. Storytimes and activities are open to the general public, not just Oak Park residents.

Exhibit includes numerous artifacts, photographs and other documentary items that tell the story of Chicago's iconic candy makers, including Snickers, Lemonheads, Butterfingers and Cracker Jack.

Interactive learning centers include a barn slide, apple orchard and chicken coop. Maggie, a life-sized fiberglass milking cow sponsored by Golden Oaks Farm in Wauconda, will be the focus of the new exhibit. Maggie is over five feet tall and features a working udder that recirculates the water that children "milk."