Humanity is increasingly moving into cities, but the Earth isn't getting any bigger.
That means our apartments are getting smaller, and our living arrangements denser.
Some people get roommates to avoid living in such small spaces. Others, due to poverty or personal obligations, have no choice but to accept their crowded circumstances.
We don't know how they do it, but somehow they make it work.
SEE ALSO: Here's what cities could look like in 10 years
Wang Cunchun, 90, lives with his 60-year-old son in a 107-square-foot apartment in Shanghai, China.
China's largest developer China Vanke showcases a micro-apartment at the Pearl River Delta Real Estate Fair in Guangzhou province.
In space-deprived China, tiny is the new big.
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