In 7 Wonders, do the science symbols on Babylon's wonder mat count for victory points? Say I've built the second level of the A side and I have no other science symbols. Do I get one point for each of the three symbols and seven for the 1 set of three symbols?
Babylon's A second stage (or B's third stage) allows you to get one scientific symbol of your choice at the end of the game, if you have built it. If you do, it counts for the scientific points. It works exactly like the Scientific purple card "Scientists' Guild".
Example: you have 4 "Gear" green cards and build Babylon's 2nd stage. You can convert it to a 5th "Gear" at the end of the game and earn a total of 25 points for 5 same green cards.