A Christmas tree is a large evergreen tree, usually a spruce or fir, decorated with lights and ornaments during the holiday season. It symbolizes the joy and warmth of Christmas and is often placed in the center of the room, where it can be seen by everyone. The tradition of decorating a Christmas tree originated in Germany in the 16th century and has since spread throughout the world, becoming a beloved holiday tradition. The tree is decorated with various ornaments, such as tinsel, lights, and candy canes, to represent different aspects of the holiday season.