In the center of America's heartland lies Iowa, a state that's bursting with chances to get in touch with the roots of Midwestern culture. It's a down-to-earth place, where the locals are always friendly and you'd be hard-pressed to find a home-cooked meal that hits the spot quite like some authentic Iowan cuisine. Opportunities for roadside activities are everywhere, and taking your Iowa rental car for a spin along Interstate 80 will guide you right through the equator of the state. Check out some of these can't-miss road trip expeditions.