The Christmas Tree in Rockefeller Center is an iconic symbol of the holiday season in New York City. It's a massive Norway Spruce, which is a type of evergreen tree. The tree is chosen each year by a team of experts from the New York City Department of Parks and Recreation, who consider factors such as the tree's size, shape, and health. The Rockefeller Center Christmas Tree is a highly anticipated event, with thousands of people gathering to see it lit up with lights and decorations. In terms of cost, the tree itself is donated and not purchased, but the lighting ceremony and surrounding festivities require significant resources and expenses.