Understand Alcatraz security design: lines of sight from towers and galleries, and why the island was so hard to beat.

Security began with height and angles.

Trace the galleries with your eyes — corridors were under multiple vantage points.

Lines overlapped to limit blind spots; yard catwalks continued the pattern outdoors.


Voor een eenvoudigere, rijkere en memorabele Alcatraz‑dag — recht‑toe‑recht‑aan tips uit herhaalbezoeken.
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