What are some famous poppy fields in the World War 1?

The most famous poppy field was at Flanders (the western part of Belgium), and it where the tradition of the poppy as a symbol of remembrance began. Following World War I and the battles along the Western Front, poppies grew in profusion there. The fighting churned up the soil and, since poppy seeds can lie dormant for years, the action was enough to germinate the thousands and thousands of poppies which then bloomed after the war casualties had all been laid to rest. As a result, the famous poem "In Flanders Fields" was penned by the Canadian army physician John McCrae, and ever since has often been read at Remembrance Day services (and ANZAC services in Australia and NZ).