Canada Post is revealing five stamps celebrating our country's UNESCO World Heritage Sites. They will feature two Nova Scotia sites - including Old Town Lunenburg, the Grand Pre landscape. Others sites to be recognized in a new stamp include Rideau Canal in Ontario, Head-Smashed-In Buffalo Jump in Alberta and SGang Gway in BC. The stamps will be available in books of six. There are 17 World Heritage Sites in Canada. The site are considered by the World Heritage Committee to be of outstanding cultural or natural important.