The history of how these mass-produced novelty lights became a holiday fixture is a distinctly American Christmas tale.

But what really made a tree a Christmas tree were ... By the 1930s, colored bulbs and cones were everywhere. Today an estimated 150 million light sets are sold in America each year, adding to ...

In Gubbio, however, it is clearlt not a real tree as we know it. It involves long cables with colored lights hanging from them, creating the illusion of a giant Christmas tree as soon as it gets dark.