Velocipedia by Gianluca Gimini

"Back in 2009, Gianluca Gimini picked up an unusual hobby. The Bologna-based Italian-American designer started approaching his friends — and complete strangers — and asking them to draw a bicycle from memory...By 2016, the pile had grown to 376 drawings from a broad array of participants from seven different countries, males and females as young as 3 years and as old as 88. He decided to begin creating highly polished renderings of these sketches, and the results — which you can see on Behance — are equal parts brilliant, hilarious and frightening."

via BBC