Of all of Tokyo's museums, this is the one that would probably delight both kids and parents the most. Even better, as Japan's largest science museum, it has an informative section that concentrates just on Japan, making it a good learning tool as well, and has lots of imaginative displays and exhibits geared toward children. It contains two sections, a Global Gallery covering earth, space, the diversity of life, and the evolution of humans, dinosaurs, and other life forms, and the Japan Gallery that focuses on the natural history of Japan. One of my favorite sections is the hallway filled with an incredible 100-some taxidermic animals from around the world, including a polar bear, camel, gorilla, tiger, bear, and more; some of the animals are even those that died at nearby Ueno Zoo. Other highlights include dinosaur exhibits; a hands-on discovery room where children can learn about sound, light, magnetism, and other scientific phenomena; a Japanese mummy from the Edo Period still curled up in a burial jar; Hachiko (stuffed and so famous there's a statue of the dog at Shibuya Station); a detailed explanation of rice cultivation in Japan; and recreated wood and marine habitats. Expect to spend a minimum of 2 hours here, though you'll stay longer if you rent the audio guide for ¥200, recommended since English-language descriptions are limited.