The first Christmas tree at Rockefeller Center looked more like Charlie Brown’s than the resplendent one today. The iconic tree dates back to the Depression era. Construction workers first placed a small, undecorated tree while working there in 1931. Two years later, another tree appeared in its place, this time draped in lights. It just kept getting bigger every year. Today, the majestic tree bears more than 25,000 twinkling lights and sees millions of selfie-takers each season.