Uploaded December 2013 | Updated September 2026, 1 week ago

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Civilizations surround themselves in walls, raising walls against enemies real and imagined. Find out about the concrete, abstract and hidden world of walls.

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VIDEOS REFERENCED:

(ENG SUB) Gaki No Tsukai Wall of Boxes
youtube.com/watch?v=cNH6kffuiSM

A Wall of Words!
youtube.com/watch?v=qUHgbixI9k0

Bathroom Time
youtube.com/watch?v=dGoHCi-wFJM

Border Fence vs. Environmental Conservation
youtube.com/watch?v=TzYWG8TJw2o

Firewall
youtube.com/watch?v=vPh_pB16gro

Firewall settings
youtube.com/watch?v=sGSMpQe3Ptg

A Flight Through the Universe, by the Sloan Digital Sky Survey
youtube.com/watch?v=08LBltePDZw

How Far Away Is It - 14 - Local Superclusters
youtube.com/watch?v=KPBcDoqH6ys

The BOSS Collaboration Visits the SDSS-III Telescope
youtube.com/watch?v=Kjvt7MVb32U

The Cosmic Web, or_ What does the universe look like at a VERY large scale?
youtube.com/watch?v=74IsySs3RGU

The observable universe (Images from the The Sloan Digital Sky Survey )
youtube.com/watch?v=GGP4BHR-iBY

'A Giant Cosmic Web' This is The Big picture of our Universe
youtube.com/watch?v=Qys80HF9-PE

He who lives in a Glass House....-HIGH QUALITY
youtube.com/watch?v=MGsZwDkk4Eo

Great Wall of China - History Documentary
youtube.com/watch?v=8SVFHQ7nfOE

Home Improvement Wilson's fun jokes
youtube.com/watch?v=SP8b2H77uqg

Israel Builds Fence Along Sinai Border
youtube.com/watch?v=ZHJBjNm0EnY

Jews praying at the Wailing Wall HD
youtube.com/watch?v=jQTYU3O6H3o

The wall: pros and cons of the Israeli separation barrier
youtube.com/watch?v=MP9AWP1yfh8

June is Bathroom Reading Month
youtube.com/watch?v=8PjPxWrIvD4

Minecraft Quick Build Challenge - Wall!
youtube.com/watch?v=w0yZteidBWE

Mongol Hordes: Tartar Crusaders
youtube.com/watch?v=q0MS7FMp1ng

North England: Hadrian's Wall
youtube.com/watch?v=Kaiodqy-Ll8

Pink Floyd-Another Brick In The Wall [HQ]
youtube.com/watch?v=xpxd3pZAVHI

Planet Earth globe animation with country borders, rotation
youtube.com/watch?v=GmIBxSn5vzg

Sittin On Tha Toilet
youtube.com/watch?v=BYW6C44zo24

THE HISTORY OF THE BERLIN WALL (Full Documentary)
youtube.com/watch?v=UXfUGkr4bUI

Wie funktioniert eine Firewall_ - Deeplink - ARD Ratgeber In
youtube.com/watch?v=qDr39p6pxVM

Wood Stud Wall Framing
youtube.com/watch?v=p6vq-cOAi0Y