![](http://www.alamy.com/thumbs/6/ACD910E4-B0F7-4237-863F-C3F4D96BF82E/F7A77N.jpg)
Sentry turet on El Morro's West Wall, Old San Juan, Puerto Rico.
Size: 3344px × 5132px
Photo credit: © Dave G. Houser / Alamy / Afripics
License: Licensed
Model Released: No
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