Housed in a modernistic white marquee, Our Dynamic Earth is an interactive, multimedia journey of discovery through Earth's history from the Big Bang to the present day. Hugely popular with kids of all ages, it's a slick extravaganza of whiz-bang special effects and 3D movies cleverly designed to fire up young minds with curiosity about all things geological and environmental. Its true purpose, of course, is to disgorge you into a gift shop where you can buy toy dinosaurs and souvenir T-shirts.