1.   We follow the railroad tracks a half-mile east of downtown, just shy of the train tunnel.

2.   The key to escape is the smaller tunnel that runs between the two train tunnels.

3.   Doors connect the train tunnels to the smaller tunnel every quarter mile and provide escape routes.

4.   Although graffiti is still very much illegal, punishable by fines and criminal prosecution, the train tunnels still lure the occasional writer.

5.   Florea was the first war correspondent to cross Remagen Bridge over the Rhine, where he hid in a train tunnel for three days.

6.   He invested huge sums in an underground train tunnel to Manhattan that eventually had to be abandoned.

7.   SilverCreek Zephyr Park will have youngsters skiing through a train tunnel.

8.   The excavation proceeded around and even under two PATH train tunnels that crossed the bathtub on the way to a station on Church Street.

9.   The train tunnels were plugged with concrete stoppers on the New Jersey side when water was discovered to be leaking into the tunnels.

10.   A government watchdog says safety hazards in New York and New Jersey train tunnels should be a top priority for Amtrak spending.