Sentry boundary tower

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Sentry boundary tower on a rocky hill

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Size: 4117px × 2773px
Location: Kazakhstan
Photo credit: © Ralko / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: adventure, alcatraz, battlements, blue, boundary, cliff, concentration, conflict, control, copyspace, crime, defense, determination, escape, fence, fort, fortification, freedom, gate, guilty, high, hill, jail, landmark, mountain, nature, outdoors, prison, risk, rock, security, service, sky, stone, top, tower, vigilance