Obviously, this was a rail tunnel that led to an ammunition storage room.

They are pushing for a rail tunnel under the Bosporus instead.

And the two parallel rail tunnels are about to be started.

This would be the first new rail tunnel under the Hudson since 1910.

The new rail tunnel is an important step in that direction.

A rail tunnel is being built under the town, that will solve the problem of the level crossings by 2009.

The rail tunnel and the station at Jabłonków are part of the line.

If such a link were built, it would likely be a 17-km-long submerged rail tunnel.

However it is the oldest rail tunnel running under streets in the world.

We have seen that rail tunnels have safety problems too.