Nearby, steps lead to a wall walk and two sentry towers with splendid views of rooftops and the Blackwater estuary.

The third tunnel ran west from the western barrack block under a sentry tower on the south-western corner of the camp.

Also inside the fort were various storehouses, a chapel, the powder magazine, the sentry towers, the cisterns, etc.

The first bullet hit the ground at his heel, fired from one of the corner sentry towers.

(the) First Watchtower: an ancient sentry tower, now ruins, on the crest of Beacontor.

There were soldiers everywhere-drilling, hauling gun carriages, clearing rubble away from a partially dismantled sentry tower.

So the aroused company searched from sentry towers to bridge ends.

Bitihorn has become somewhat a symbolic sentry tower for the municipality of Øystre Slidre.

The remaining sentry towers are irregular, owing to the irregultar terrain.

Crossed in front of the sentry tower, they allude to constant vigilance and readiness to defend Puerto Rico.