[Doug]

Even though the Denver metro is much larger than Calgary, downtown Denver has a smaller workforce, less office space and I am guessing a lower resident population. The main differences are:
-Denver has a much larger stock of historic buildings even though it isn't all that much older than Calgary. The main reason is that it was larger and more prosperous than Calgary back in the late 1800's and early 1900's
-downtown Denver has more entertainment attractions, including 4 professional sports teams, an amusement park, a larger convention center, a major museum
-the weather in Denver is considerably warmer than Calgary. The golf courses stay open nearly year round and even in the winter, spells below freezing rarely last more than a few days at a time.