LAX. IAD. ARN. WTF? The strange stories behind airports’ three-letter abbreviations.

When booking flights online, knowing your local airport’s code can come in handy. There’s 3,000 miles’ difference between BUR (Burbank, California) and BTV (Burlington, Vermont). And you probably don’t want to end up in Venezuela just in time for Oktoberfest (Munich’s code is MUC, not MUN). (www.slate.com) Plus d'info...