Blasts from the Old Faithful Geyser aren’t the only visual amusement at the oldest national park in the US. Yellowstone National Park’s multi-hued geyser basins—in particular, Grand Prismatic Spring and Morning Glory Pool—are surrounded by hypnotic, fire-colored rings begging to be photographed. Visitors to the Wyoming park can enjoy these and other natural wonders, including wildlife such as bison, wolves, coyotes, and, occasionally, grizzly bears. Hiking, animal watching, and other park highlights are most easily enjoyed on a self-guided, group, or private tour.