What is the worlds longest national highway?
The world’s longest national highway is the Trans-Canada Highway that run across Canada from Victoria, British Columbia to and St. John’s, Newfoundland covering 7,821 kilometers or 4,860 miles. The highway took over 20 years to complete at a cost of almost $1,000,000,000.00 CAD. The Trans-Canada Highway was officially opened in 1962 but was not completed until 1971.