Tobu Museum

The plates are ridiculously cute and much better executed than most character cafes, but getting a reservation is the hard part.

The elevators are part of the thrill, then you get enormous views plus plenty of food and indoor stops downstairs.

Compact enough for little kids, with a big penguin pool and jellyfish displays you can pair with the tower upstairs.

Separate sleeping areas and a kitchen make this feel much closer to a small apartment than a typical hotel room.

A stylish Asakusa option with quadruple rooms, laundry, and a 24-hour shared food-and-drink space that is genuinely useful when kids are on odd schedules.

The salt exhibits are surprisingly hands on, and the low admission makes this an easy add on rather than a whole day.