San Francisco

San Francisco

San Francisco is hills, fog, Mission burritos the size of forearms, and pastel Victorians stacked like dominoes. Karl the Fog has his own Instagram, the cable cars are still mechanically pulled by cables running under the street, and the Pacific shows up at the end of every west-bound avenue. The food is wildly good, the views are theatrical, and yes, you'll get cardio just walking to the corner store.

Boulder

Boulder is the Flatirons rising right behind town, the Pearl Street Mall pedestrian shopping, and a population that runs more, climbs more, and bikes more than basically any other American city. CU keeps it young, the foothills keep it active, and the food scene leans organic-virtuous. The access to the Rockies is unmatched and the sunshine is relentless, and locals invest in the city like it's a lifestyle, not just an address.