These days, the Rockefeller Center Christmas tree usually stands no less than 65 ft. tall (this year it's 74 ft. tall). The 1999 display boasted the tallest tree, a Norway spruce that stood over 100 ft. tall. Because the tree must maneuver through narrow city streets, it most likely won't ever be much larger than that. The Norway spruce has been New York City's tree of choice since 1982.