Planning our American Children (and Family) Vacation to Europe

When planning our trip overseas from America to Europe with our two kids, we looked for out - of - the box trip planning, locations and site recommendations to interest our children and found that there was little out there.  Our American children, 9 and 10 year old boys that love to travel and see new things, we wanted our European vacation to be a hit with them.  So we wanted to share the things we've learned...