On our last day in Tokyo we went down to the Odaiba area. Great idea! Odaiba is basically Tokyo’s giant amusement park. In contrast to some of the narrow streets back in town, Odaiba is expansive, and has well-designed everything. There is the Museum of Emerging Science and Innovation. It has displays of robots, cat brains, the space station, genetically-engineered plants, model demonstrations of concepts from quantum mechanics, and best of all: a fully-working mechanical model of the internet.