A Christmas tree, Yule tree or Tannenbaum (German: fir tree) is one of the most popular traitions associated with the celebration of Christmas. It is normally an evergreen coniferous tree that is brought into a home or used in the open, and is decorated with Christmas lights and colorful ornaments during the days around Christmas. An angel or star is often placed at the top of the tree, representing the host of angels or the Star of Bethlehem from the Nativity story.