More than 150 years ago, the interior of the U.S. included a 170-million-acre sea of six-foot-tall grass and bison. Today, the closest you'll get to that preindustrial landscape is the 11,000-acre Tallgrass Prairie National Preserve, where you can walk among one of the remaining pure-bred bison herds (another is in Yellowstone). Open the gate and stand alone with America's wild, still-beating heart.
Getting there: From the Wichita Mid-Continent Airport, drive an hour to Strong City and stay at the Prairie Fire Inn and Spa. The preserve is two miles north of town.