![File:Close up high angle view showing damage to the Western ring wall of the Pentagon Building after the September 11, 2001 attacks 010911-N-PU293-015.jpg - Wikimedia Commons File:Close up high angle view showing damage to the Western ring wall of the Pentagon Building after the September 11, 2001 attacks 010911-N-PU293-015.jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/5/55/Close_up_high_angle_view_showing_damage_to_the_Western_ring_wall_of_the_Pentagon_Building_after_the_September_11%2C_2001_attacks_010911-N-PU293-015.jpg)
File:Close up high angle view showing damage to the Western ring wall of the Pentagon Building after the September 11, 2001 attacks 010911-N-PU293-015.jpg - Wikimedia Commons
![A portion of the Pentagon's collapsed outer western ring is clearly seen the day after American Airlines Flight 77 was piloted by terrorists into the building - NARA & DVIDS Public Domain A portion of the Pentagon's collapsed outer western ring is clearly seen the day after American Airlines Flight 77 was piloted by terrorists into the building - NARA & DVIDS Public Domain](https://cdn10.picryl.com/photo/2001/09/12/a-portion-of-the-pentagons-collapsed-outer-western-ring-is-clearly-seen-the-68540d-1024.jpg)
A portion of the Pentagon's collapsed outer western ring is clearly seen the day after American Airlines Flight 77 was piloted by terrorists into the building - NARA & DVIDS Public Domain
Why does the Pentagon building have rings inside it? Is it for any reason other than to provide more natural light? - Quora
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Oro 18 Carati Oro Bianco Iced Out CZ Zircon Pentagon Ring Band Mens Hip Hop Wedding Ring Full Diamond Rapper Gioielli Regali Uomo Allingrosso Da 11,68 € | DHgate
![A wall of the E-Ring of the Pentagon leans inward and other walls show fire damage in this September 14, 2001, photograph. Damage to the Pentagon was caused when the high-jacked American A wall of the E-Ring of the Pentagon leans inward and other walls show fire damage in this September 14, 2001, photograph. Damage to the Pentagon was caused when the high-jacked American](https://c8.alamy.com/comp/2F1DJ9Y/a-wall-of-the-e-ring-of-the-pentagon-leans-inward-and-other-walls-show-fire-damage-in-this-september-14-2001-photograph-damage-to-the-pentagon-was-caused-when-the-high-jacked-american-airlines-flight-slammed-into-the-building-on-sept-11-the-terrorist-attack-caused-extensive-damage-to-the-west-face-of-the-building-and-followed-similar-attacks-on-the-twin-towers-of-the-world-trade-center-in-new-york-city-staff-sgt-larry-a-simmonsus-air-forcemctsipa-usa-2F1DJ9Y.jpg)