BoulderColorado / United States
Boulder is a city at the foothills of the Rocky Mountains, in northern Colorado. To the west, the trail-lined Flatirons are craggy rock formations overlooking the city. Downtown’s pedestrian Pearl Street Mall includes art galleries, cafes, restaurants and boutiques. The University of Colorado Boulder campus is home to the Fiske Planetarium and the Museum of Natural History, with zoology and anthropology exhibits.