The Mile High City is a great place to start your visit in Colorado, and likely your point of entry. As one of the best cities in Colorado, Denver features several fantastic art museums and art galleries, a science museum with amazing displays of local gems and minerals, lots of outdoor activities, and more fun things to do. There’s even a river for kayaking and tubing that runs right through several of Denver’s neighborhoods. If you’re a sports fan, Denver is home to six pro teams, so there’s always a game or match on somewhere. After a day of exploring, grab a bite while admiring the historic buildings in Larimer Square.