Top 10 Longest Tunnels of the World

9. Mount Blanc, France-Italy


The first Winter Olympics, in 1924 were held at Mount Blanc in France. This place is also popular as Chamonix. Chamonix-Mont-Blanc in situated close to Aiguilles Rouges Mountains and the total length of the tunnel is 7.2 mi. This place is also popular for winter games.