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.


Để ngày Alcatraz của bạn đơn giản hơn, giàu trải nghiệm và khó quên — những mẹo cô đọng từ nhiều lần trở lại.
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