Tot Lot. 9 a.m.-noon, Hyde Park Neighborhood Club, 5480 S. Kenwood Ave., firstname.lastname@example.org, classes are $9 drop-in, $45 for a 10-session pass or $65 for a monthly pass. This class is intended for children 0-4 and their caregivers or parents to get together on a regular basis to learn, play and benefit from one another’s company.
Workshop. Lego Architects. 10 a.m.-noon, Robie House, 5757 S. Woodlawn Ave., 312-994-4000, gowright.org, $5 per child, free for accompanying adults. Participants use Legos to create a 3D model of a floor plan design. Visit gowright.org to buy the required advance tickets. Appropriate for children ages 6 and up with an adult.
Worldwide Dijeridu Meditation. 6-9 p.m., Rockefeller Chapel, 5850 S. Woodlawn Av.e, 773-702-2100. free. A period of sound healing meditation with Australian didjeridus, drums, gongs and bells. Part of a worldwide event starting in New Zealand and marking the sunset around the world for a period of 24 hours.