1.   A see-through walkway tunnel runs through the habitat.

2.   Israel denies the tunnel runs underneath the Muslim compound and says it poses no structural danger to the mosques above.

3.   The tall drivetrain tunnel runs the full length of the vehicle, requiring one to hurdle the drivetrain to reach one side from the other.

4.   Tunnels would run to an underground storage facility beneath Pennsylvania Avenue.

5.   A pedestrian tunnel runs under the boulevard.

6.   Israel says the tunnel does not run underneath the compound, and the passage poses no structural danger to the mosques.

7.   Muslims claim that tunnel runs underneath the Al Aqsa compound, but archaeologists say it runs alongside it.

8.   Only the Shin Kammon tunnel runs beneath the sea.

9.   The tunnel ran from a private home in the mountains east of San Diego to a house in Tecate.

10.   The tunnel runs along the base of a long-hidden portion of the Western Wall that connects with a water conduit.