A really good, captivating way to convey so much information. A real hands on tour, including squashing rocks, ice sculptures, volcanoes, time travel, chimps in the rainforest, looking for fish, and a 3-D flight across the world. We took a 4-year-old and he was entertained for the entire tour, but I'd guess apt for a range of ages.
Capped off by a near-unique smashing cinema experience.