When In Rome

No, not that Rome. Colosseum in the Italian version of Rome. The town occupies a total of 6/10ths of a square mile and as of 2000 had a total of 157 households.



This sign shows some very simple mathematics in the top green sign. It's complicated though by the highway markers that are also connected, but luckily they can cancel each other out!

$$187 - 187 + 3 + 4 = 7 $$

This sign is found in Pennsylvania on US 6 westbound as it joins PA 187.