Niagara Falls! Mighty cascade of water! Font of hydroelectricity, tourism, romance, wildlife!
원문출처 : http://www.cnn.com/travel/article/niagara-falls-dewatering-bridge-feat/index.html
원문출처 : http://www.cnn.com/travel/article/niagara-falls-dewatering-bridge-feat/index.html