South Korea to reveal world’s biggest invisible skyscraper

Seoul’s skyline will soon boast a 1,476-foot (450 meters  building, dubbed Tower Infinity, but you may not be able to see it. The trick lies within the real-time projection of surroundings behind the building onto its front with the help of LED facade and cameras. Even with the projections off the system will make the outlines of the tower indiscernible. Tower Infinity will be used primarily for entertainment and leisure. The tower’s observation deck will be the third highest in the world.