Do you know that the longest bus route in the world was from Calcutta to London, this route started on 15 April 1957, this bus ran from Calcutta to Delhi, Amritsar, Wahaga Border, Lahore, Kabul Harat (Afghanistan), Tehran. (Iran), Istanbul (Turkey), Germany, Austria, France, traveling about 7900 kilometers to reach London. The bus ran until 1973, in 1957 its fare was 85 pounds and by 1973 bus service stopped Had risen to 145 pounds.