Enthusiastic children around the world are on their way to school. But how do they get there? The answers are as varied as the landscapes, which range from Egypt's sandy desert to Switzerland's snowy peaks. Jaunty rhymes — in Venice, "Bianca, Beppo, Benedetto, ride aboard the vaporetto" — and exuberant watercolors celebrate the individuality of each locale, and there are plenty of humorous …