Sometimes on long drives you see signs that just don’t make any sense that they stick with you forever. While driving through the Midwest I saw a sign that listed both the distance to Chicago and St. Louis. As an Easterner, those two cities seem like they are far away from each other and shouldn’t be on the same sign. While traveling in the Republic of Georgia I saw a sign that said Tehran was 1240 kilometers away. A quick conversion determines that it is less than 800 miles away, but the bigger issue is should I really be somewhere that is close enough to Tehran that it is listed on a highway sign?