We are a family of 5 wanting to do a road trip in July to Boston from Indianapolis. The kids are 12, 10 and 4. We want to stop at some places along the way or the way home and have been considering Niagara Falls and maybe go up into Maine (Kennebunkport). We have a week for this trip. Any other suggestions of place to stop along the way that would be of interest for the kids? How about Philadelphia? Or Baltimore? We haven't been to any of these places or really any out in that area with the kids. We have been to Boston once but it was without the kids. We are thinking 3 nights in Boston and 1 night in Niagara Falls. Thanks for any suggestions!!!