From a Washington Post editorial:

Almost every direction one looks in downtown Calgary, there’s a crane. The downtown transformation that so many other cities are desperate for is underway in Calgary, a city of 1.4 million in Alberta, which is often dubbed the “Texas of Canada” for its ties to the oil and gas industry. But today, office towers that once housed energy companies are rapidly being converted into apartments. Calgary offers a road map — and a tool kit — for D.C. and other beleaguered cities on how to make the switch rapidly and efficiently.