This is a video of the world’s largest LED sphere (and largest spherical building, period) being tested in Las Vegas. The MSG Sphere at The Venetian Las Vegas Resort measures 366 feet tall and 516 feet at its widest, and is covered with 580,000 square feet of programmable LED lighting. The Sphere will also be the home to the world’s largest indoor LED screen as well, featuring a 16K resolution wraparound LED screen with 160,000 square feet of viewing area and 18,600 seats, making it the largest and highest-resolution LED screen in the world. And all at a cost of just $2.1 billion. Is that the best use of $2.1-billion? No. Is it the worst? That depends, will I be able to see the next Avatar there?