Big wigs at the Federal Reserve and Treasury Department took the new $100 bill, which was revamped in an effort to cut down on counterfeiting, out of their vaults this week. How is it different from the Benjamins we know and love? Benny boy is still on the front, and it has a watermark and security strip, but the back shows the back of the Independence Hall in Philadelphia (instead of the front). And there's a 3D panel with bells that change to the number 100 when it's turned just right. No fancy 3D glasses required. The new bill won't go into circulation until next year.