Las Vegas: A concert venue from the future

Madison Square Garden Company started a project in Las Vegas which, when finished, will be the most up-to-date concert venue in the world. It will host 157,000 ultra-directional speakers, a three-and-a-half-acre spherical ultra-high-res video screen and vibrating floors in a enormous dome built from scratch. Should be open for New Year's eve in 2020. Photos here. Rolling Stone...