It's the very first official National Christmas Tree! Back in 1923, President Calvin Coolidge began the tradition of lighting the tree in a formal ceremony. The Capitol Christmas Tree, which attracts thousands of visitors each year, is part of a larger outdoor exhibit that features miniature train sets and dozens of smaller trees decorated with ornaments representing all 50 states, five U.S. territories and the District of Columbia.

It's the very first official National Christmas Tree! Back in 1923, President Calvin Coolidge began the tradition of lighting the tree in a formal ceremony. The Capitol Christmas Tree, which attracts thousands of visitors each year, is part of a larger outdoor exhibit that features miniature train sets and dozens of smaller trees decorated with ornaments representing all 50 states, five U.S. territories and the District of Columbia.