2 "Ficheiro:Alcatraz_Island_guard_watchtower,_San_Francisco_-_panoramio.jpg".

Ficheiro:Alcatraz Island guard watchtower, San Francisco - panoramio.jpg

archive.org/web/20161021023238/http://www.panoramio.com/user/2134453?with_photo_id=64641126 operator: Panoramio described at URL: https://web.archive...

Ficheiro:Alcatraz Guard Tower detail - panoramio.jpg

panoramio.com/user/39152?with_photo_id=73434995 operator: Panoramio described at URL: https://web.archive.org/web/20161025012307/http://www.panoramio...

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