Shawn: Yes, Boston's sins are myriad (Big Dig, anyone?). Seriously, though, here's a very interesting post by Michael Covington about Mark of the Beast numerology:
[The number is n]ot six-six-six, but six hundred sixty-six, which in Roman, Greek, or Hebrew numerals is not written as three sixes. (For example, in Roman numerals, 6 = VI and 666 = DCLXVI.)
And in some manuscripts of the New Testament, the number is given as 616.
Hebrew, Greek, and Roman numerals consist of letters from each respective language's alphabet. Especially in Hebrew and Greek, ordinary words can be assigned numerical values. You can do that with Roman numerals if you simply skip the letters that are not numerals, which are many....