It's getting a little misty up here.
This construction time-lapse video of One World Trade Center is almost guaranteed to stir the emotions.
EarthCam wrote on its YouTube description that it posted the special edition video to celebrate the May 29 opening of One World Observatory on the 100th, 101st and 102nd floors. The footage covers October 2004 to Memorial Day 2015, using hundreds of thousands of high-definition images.
EarthCam, a webcam network, has released previous time-lapse videos of One World Trade Center, including one in 2012 to mark the anniversary of the Sept. 11 attacks that left the site devastated.
How high we've come.