Denver is located at the foot of the Rocky Mountains in Colorado. Most people who visit Denver come to camp in the Rockies. There are a number of places to visit in Denver. The Colorado State Capitol is a magnificent structure, which stands 1 mile above sea level. It tends to draw a lot of visitors. The Butterfly Pavilion is home to thousands of species of butterflies as well as insects. It is a natural setting and has a greenhouse environment. Denver also has a water-themed amusement park that is open from summer through fall. The small college town of Boulder is also attractive for its vibrant ambiance.