MSPeconomist

You might they googling for children's museums, toy museums, science museums (many of which have programs for kid's).

For the cultural differences aspect, depending on what the kid has been experienced so far, I'd be tempted to look for places where there would be play group type activities with kids who look very different, dress differently, or speak different languages. Perhaps hotels with activities for children would work if their primarily clientele is local. Even resorts with play spaces for kids, playgrounds, kid's pools, etc. could work if kids from other cultures are the primary users of the facilities.