Since the dawn of civilization, people have been building tunnels for accessing tombs or underground quarries, or in the hill slopes for allowing the flow of water from porous rocks. Romans were skilled tunnel builders, who made several kilometers long underground passages using the work of slaves.
But modern day tunnels are a bit different as the means of transportation are various. Some tunnels are just for trains and some are for cars but few also serve both.
Here I have compiled some of the longest road tunnels of the world. I hope you will like it.Laerdal Norway
The Lærdal Tunnel in Norway is the world’s longest road tunnel, The Lærdal Tunnel enables motorists to avoid both landslides and weather-enforced road closures in winter. Its length is 24.4 km.
St Gotthard Tunnel
The Hsuehshan Tunnel
The Frejus Road Tunnel
The Mont Blanc Tunnel