These are the Urban Waterfalls of Edmonton, including the city’s best kept secret. From an historic Great Divide Waterfall higher than Niagara Falls, to one out of thin air, to hanging cascades downtown, to the final hidden wonder, these waterfalls of River City will blow your mind. We’ll start with the Great Divide Waterfall. Originally planned for the 78 commonwealth games, the half a million dollar landmark was opened September 1, 1980 in time for…