Postcard showing the a section of the Rideau Canal in downtown Ottawa, with Canadian Parliament Hill and Château Laurier in the background. The canal was opened in 1832 as a precaution against war with the United States leading to closure of the Saint Laurence River. Most of its original structures remain intact and it is the oldest continuously operated canal system in North America. In 2007, it was registered as a UNESCO World Heritage Site. When it freezes over in winter, the canal becomes the world's longest skating rink and, since it goes right past many important government buildings, is used by many as a way to commute to work.
International rate stamp issued this year commemorating the Year of the Dragon.