The video below was released by EarthCam to mark the opening of the One World Observatory in New York City. The clip you’re about to see is an impressive time-lapse showing the building progress from October 2004 to Memorial Day 2015. A lot of effort was put into the making of this stunning video as the team cut together hundreds of thousands of high-definition images captured during the 11 years it took to build this commemorative sky-scraper. But the result is truly remarkable! This is definitely a video you’ll want to share with all of your friends and family.