11.   A National Register Historic Site, it features handcut stone walls complete with turrets and watch towers.

12.   Among steps taken, he said, was the addition of watch towers that allow guards to see further beyond the base perimeter.

13.   Another sign directed travelers to a fortified inspection area with a watch tower where travel permits and cars will be checked.

14.   At a dusty border checkpoint surrounded by fences and watch towers, Israelis and Palestinians were meeting Sunday to rescue a peace effort bloodied by recent gun battles.

15.   At a dusty border checkpoint surrounded by fences and watch towers, Israelis and Palestinians tried Sunday to rescue a peace effort bloodied by gun battles.

16.   But the opposition has transformed them into fixed watch towers and deadly weapons, armed with grenade launchers capable of inflicting damage on Taliban forces.

17.   Cranes lifted huge cement cells onto tank carriers as soldiers removed antennas and watch towers.

18.   However, the belt of infrared detectors, acoustic sensors and watch towers installed near the old demilitarized zone failed to do the job.

19.   In Hebron, Israeli troops reinforced positions around Jewish settler enclaves with bulletproof watch towers and dozens of soldiers patrolled the downtown Arab market area.

20.   Individual families mark off plots of a few rows, each with fences and gates, and keep a lookout for rustlers from watch towers.