The world’s 10 longest tunnels – including three in the same country

The first modern tunnel was built in London in 1848. Burrowing under the Thames, it was 23 metres below the river surface and 396 metres in length.

Tunnels became longer and longer to allow the passage of horse-drawn carriages, pedestrians, trains and later, automobiles.

Now, underground road tunnels can stretch miles, with the longest in the world being over 15 miles.

Here are the world’s ten longest road tunnels, with three in the same country. It is worth noting that these are the longest road tunnels. 

There are longer tunnels used for railways, aqueducts, etc. The longest in the world is the Delaware Aqueduct, 85 miles long.