15 Things You Didn't Know About Santa Claus

There are so many rumors swirling around about what's under Colorado. Watch the Colorado 9NEWS special "Under Colorado" for more underground secrets, Saturday, Oct. 22 at 6:30PM on Channel 20. Many residents have heard about a secret military city under Denver International Airport, even a government project on aliens down there. Coloradans have heard about what it’s like inside the most famous underground military base in the world: Cheyenne Mountain. Just south of Colorado Springs is one of the most famous military bases in the world, but you can’t see it. It sits one mile inside of the granite Cheyenne Mountain, 2,000 feet down from the surface.

The Santa Tracker is an annual Christmas tradition that started when a straight-laced military man decided to be a good sport when a kid called his top-secret hotline.

This year marks the 65th anniversary of a beloved holiday custom: NORAD tracking Santa Claus and his reindeer on their round-the-world journey. NBC’s Kerry Sanders reports for TODAY on the tradition’s unlikely origin.

Learn how to draw a reindeer!