"If money is flowing, tunnels dig themselves," Professor Rose said.

He had mounds erected and tunnels dug to lay siege to the city.

Or a tunnel dug deep under the shack?

Sure enough, a half-mile up I found a. tunnel dug into the side of the hill, and broken rock around it.

The tunnel dug at the bottom follows the vein and is just big enough for a man.

The next morning subway workers found a tunnel dug, where Barricade had freed himself and escaped.

Some high and rugged passes may have tunnels dug underneath to let traffic move faster.

The facility is said to include numerous tunnels dug deep into the mountains, and may also host some biological weapons.

Several air forces have used tunnels dug into a mountainside as underground hangars.

You'd need three figures to count the tunnels dug during the years since the Wall was built, but only a dozen succeeded.