Athlete Kyle Maynard is the first quadruple-amputee to climb Tanzania's Mt Kilimanjaro and Argentina's Mt Aconcagua without the aid of prosthetics.
Video network Great Big Story has released a short film about Mr Maynard's life and his climbing feats.
Mr Maynard says mountain climbing is "breathtakingly beautiful", though it does suck "99 percent of [the] time".
"That 5 percent that doesn't suck, that's amazing".
Aside from climbing mountains, he's also a New York Times bestselling author, motivational speaker, jiu-jitsu fighter, wrestler and weightlifter.
He was born in Washington DC with congenital amputation, a rare condition that rendered him a quadruple amputee.