By the turn of the 20th century, the railway was a going concern and made its mark on the world stage. Major hotels were begun, such as the Empress Hotel in Victoria, the Second Hotel Vancouver, Glacier House, the Banff Springs Hotel and Chateau Lake Louise. Heavier railway equipment was built and ordered to keep up with the increased tonnage, and with the heavier trains came heavier bridges. One ongoing problem was the onerous grade up the Kicking Horse Pass. The heavy trains needed batteries of engines to get over the Big Hill. From this the Spiral Tunnels evolved, and construction began to build the long tunnels under the mountains.