An artist in Iowa named Patrick Acton built a complete model of Hogwarts out of matchsticks.
14
A teen in Michigan built a working nuclear reactor. He taught himself how to build it as a weekend hobby project in his basement from ages 15-17 for $3500.
8
Between 2007 and 2012, Bill Gates gave away $28 billion; saving 6 million lives.
34
A man called Dean Karnazes ran 350 miles in 80 hours with no sleep, ran a marathon in the South Pole in -25 °C temperatures without snowshoes, and ran 50 marathons in 50 states in 50 days.
14
Steven Callahan spent 76 days at sea while he drifted 1,800 perilous miles across the Atlantic in a rubber raft, battling starvation, thirst, sharks and storms. He later became the technical adviser for the acclaimed movie Life Of Pi.
15
A man named Ziona Chana lives in a 100 room, four storey house set amidst the hills of Baktwang village in the Indian state of Mizoram and has the world's biggest family with 39 wives, 94 children, 14 daughters-in-law and 33 grandchildren.
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