I spent 25 hours spread over 8 days building this massive triple spiral structure with 15,000 dominoes. Subscribe for my best project yet :) yo give it a share for all the hard work :) FB: ► http://bit.ly/2cLXCM6 Twitter ► http://ctt.ec/bFRnX Worked flawlessly with no breaks! For proof, watch this structure build itself in REVERSE! https://www.youtube.com/watch?v=L9jpBdLCHyM Pretty sure this is an American record for longest domino speedwall too :) Hey! I'm Hevesh5 and I am a profession