 How do I know where America's five best zoos are located? Well, a book designed for travelers with the title America's Best Zoos tells me so. I'm Rudy Maxx with today's Travel Minute from Rudy Maxx's World. Here's a strange fact. People generally only visit zoos in their hometowns. They'll hit the road to visit cemeteries, shopping malls, museums, but not zoos.