It has been called a museum of the 21st century, but it's much more than that. Where else can you stand at the edge of a black hole, work hand-in-clamp with a robot, or land on the moon? Even the building itself is extraordinary: three linked pavilions float gracefully down the side of a ravine and overflow with exhibits that make space, technology, and communications fascinating. The 25,000-square-foot Weston Family Innovation Centre, rife with hands-on activities, is all about experience and problem solving. Make a music soundtrack, take a lie-detector test, and measure fluctuations in your body chemistry as you flirt with a virtual celebrity.Younger visitors learn through play in KidSpark, a space specially designed for children eight and under to enjoy and explore. The CA Technologies Planetarium, Toronto's only public planetarium, uses state-of-the-art technology to take participants on a trip to the outer reaches of the universe. Demonstrations of glassblowing, papermaking, lasers, electricity, and more take place daily; check the schedule when you arrive. The museum has a cafeteria, a restaurant, and a gift store with a cornucopia of books and scientific doodads.