A statue of the Roman "god"Jupiter.
I've been making research about the roman numeral IV and here is what I found out. I found out that before, 4 in Roman Numerals isn't IV but instead IIII. Better read this.
IIII and IV
The notation of Roman numerals has varied through the centuries. Originally, it was common to use IIII to represent four, because IV represented the Roman god Jupiter, whose Latin name, IVPPITER, begins with IV.
Source: http://en.wikipedia.org/wiki/Roman_numerals#IIII_and_IVIt's now your decision if you are going to believe it or not.