Small Worlds Tokyo
スモールワールズTOKYO
Ariake (Odaiba Bay area) · near Ariake-Tennis-no-Mori (Yurikamome) or Kokusai-Tenjijo (Rinkai Line, ~9 min walk)
One of the largest indoor miniature-theme-park museums in the world, in Ariake on Tokyo Bay. Vast, intricately detailed dioramas — a global-village airport, a space centre with a launching rocket, and licensed Evangelion and Sailor Moon zones — run on day/night lighting cycles with hundreds of tiny moving figures. You can even have a 1/80 scale figure of yourself made to place in the display.
Why children love it: The scenes are alive — trains run, a rocket lifts off, lights switch from day to night — and everything is at child eye-level to pore over.
Honest drawbacks: It is all about looking rather than doing; very young toddlers may not last the full visit. The licensed anime zones mean more to older kids and fans.

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- Best for
- Primary (5–11), Teens (12–17), Adults
- Time to allow
- 2.5h
- Opening hours
- 9:00–19:00 (last entry 18:00)
- Price
- Indicative: adult ~¥2,700, ages 12–17 ~¥1,900, ages 4–11 ~¥1,500, under-4 free. Confirm current pricing on the official site.
- Booking
- Usually walk-in
- English
- ★★★★☆
- Indoor / weather
- indoor · rainy-day ok
- Confidence
- Well-corroborated
Getting there: Ariake, Koto City, on the Tokyo Bay waterfront near Ariake Garden.
Accessibility & prams: Generally pram-friendly — confirm lifts on the day.
Photography: Photography is allowed and encouraged — bring a phone/camera.
Crowds & timing: Weekday mornings are quietest; weekends and school holidays are busier.
Planning tip: Pair with teamLab Planets (both are on the bay side) for an all-indoor rainy-day around Ariake/Toyosu.
Editor’s note: Reconfirm 2026 hours and price tiers on the official site before launch.