The Insane Geography of North vs. South Korea

Published at : 23 Dec 2025

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What if I told you there’s a border so stark, it’s visible from space as a line between blinding light and near-total darkness? Or that this same dividing line, the most heavily militarized zone on Earth, has accidentally become a teeming paradise for endangered wildlife? From a single city that holds half a country's population to an ancient kingdom that once stretched deep into China, the Korean peninsula is a land of staggering geographic extremes.
So here are 15 incredible geography facts you never knew about Korea.
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Chapters:
0:00 - The Korean Peninsula
0:29 - It's 70% Mountains
1:11 - It Has Over 3,500 Islands
1:54 - Home to Two Mythic Volcanoes
2:34 - Opposite Coasts
3:19 - Major Rivers Flow Two Directions
4:28 - The "Bridge" and the "Battleground"
5:09 - The 38th Parallel Was an Arbitrary Line
5:56 - An Accidental Paradise
6:46 - Ancient Kingdoms Forged by Mountains
7:33 - A "Lost" Northern Territory
8:17 - South Korea’s Mega-Metropolis
8:59 - The North-South Resource Lottery
9:48 - Building Land from the Sea
10:29 - One of the World's Densest Countries
11:17 - A Divide You Can See from Space
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Stock footage and music acquired from www.envato.com, www.storyblocks.com and videvo.net.

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