This book was essential for our successful family vacation…It kept our five- and eight-year-old sons motivated to visit the city’s main attractions, helped us bond as a family when we accomplished each assignment, and was not at all complicated, leaving mom and dad sane to enjoy the cultural institutions (because we’re on vacation, too). My husband and I loved traveling the world before we had kids, and before we found this book, the kids were not as enthusiastic about being dragged around to unfamiliar places. We will be buying the rest of the books in the collection and filling up our passports!