Despite all the concrete and crowds, Tokyo can be a great place for kids. Scores of parks, museums, and imaginative play spots dot the city, at prices that won't send parents into sticker shock. But for newcomers to Tokyo's bewildering urban sprawl, these hidden gems can be hard to find. Kids' Trips in Tokyo is the answer to every foreign parent's prayers. No Disneyland or Tokyo Tower here-each chapter is a full day's outing that might include...