The right most bolt line on the tower - can be started from the creek at low tide, or at the third bolt of the route, if you scramble up and around. Once the ramp/bulge is pulled, stay out left, rather than heading up the ramp, out far right, to an additional 2 bolt crux (which looks fun, and is a big move, but probably not the original line).
Protection
11 bolts, 2 bolt anchor. A peace of mind trad placement (2.5 cam) near the top.
It's like something from the twilight zone. Felt harder than 11a. No gear needed. There is also another route on this rock called "Babylon is Burning" just to the left of Ziggurat. It is rated 12a. Finger/hand crack to start, then an overhang to face crux that is bolted to the top with a 2 bolt anchor (60 meter rope). When I climbed this, it had cob webs in the first 20 feet of crack. Rack: some gear and some quickdraws.