GUINNESS WORLD RECORDS ®
GUINNESS WORLD RECORDS ® The new GUINNESS WORLD RECORDS ®the tallest freestanding 3D printed concrete tower On behalf of the Ministry of Municipal, State of Qatar, kpm3 has officially realized the world record as the tallest free-standing 3D-printed tower. The 12.1 meter high Pigeon Tower is one of the four towers representing the DESERT NEST…