China - Xu Shuquan, a retired primary school teacher from Chengdu city in Sichuan Province, has dedicated the past 60 years to folding paper planes.
The 70-year-old now has a collection of 10,000 planes of different sizes, colors and shapes, in addition to various paper dolls and models of the 12 zodiac signs.
What’s so great about a grown man making paper planes, you ask?
Well, Xu’s planes aren’t like those simple ones that kids make. He uses a complicated ancient origami-like folding technique called ‘Zhezhi’ to make a variety of aircraft models – from jumbo jets to fighter planes. More