Houston has a bad rep. To the uninitiated, America's fourth largest city is a cultureless landscape of skyscrapers, cookie-cutter strip malls, born-yesterday suburbs and heat so oppressive that its inhabitants scurry through air-conditioned pedestrian tunnels (when they're not in their air-conditioned cars). But if you visit in the fall, you'll find the climate temperate, and you'll also learn that Houston is full of world-class art, architecture and restaurant destinations -- and a great place to launch a business.