Why airport codes have an “X” RJ Hamster 2 years ago HOME FACTS ARTICLES 8 Facts About Airports You Might Not Know What’s the world’s oldest airport? Why is there an “X” in PDX? Is there a way to get a nap between flights? The following eight facts might change the way you catch your next plane — or at least end some mysteries. 7 Amazing Facts About Insects 7 of the Most Influential Magicians Who Ever Lived Make Every Day More Interesting. EMAIL PREFERENCES UNSUBSCRIBE PRIVACY POLICY TERMS OF USE Advertisements: Powered by AdChoices We love to collaborate. To learn more about our sponsorship opportunities, please connect with us here. 1550 Larimer Street, Suite 431, Denver, CO 80202 Share this:Print
