Trees make a great decoration for Christmas and winter festivals. And every winter one of the most famous trees is the giant spruce at Rockefeller Center. There’s a limit on how tall a tree they can use: Norway spruces are about twice as tall as they are wide, and only a tree less than 55 feet wide can fit under the city bridges. So it can’t be more than 110 feet tall. This year’s tree is much shorter than that, but it still holds more than 50,000 tiny lights — and a 9 1/2-foot star that weighs 550 pounds!