Fierce Lion Bangle is a treasure found in Uncharted 3: Drake's Deception. It can be found in Chapter 4 - Run to Ground. After reaching the room with standing water on the floor you'll turn right and enter a vertical shaft and make a comment about it being a long way down. From here you'll grab some wall pipes and try to get just below the entry platform. On the wall you will see some chain link covering an opening, look inside, voila!