A picture book for kids about traveling around the world in planes, trains, and automobiles

Peter is going to the zoo and he wants his friend Ahmed to come, too. To get to Peter, Ahmed just has to ride his camel through the desert, catch a bus to the airport, and hop on a jumbo jet! Like Dora the Explorer meets Thomas the Tank Engine, this is a picture book about all the different types of transport people use to get around the big wide world and the many places, people, and customs to be seen along the way.