My suggestion for caption was already mentioned. That photo reminds me of a rock at Glacier Point in Yosemite. It is a large slab, flat and rectangular which is balanced just right on another rock which acts like a fulcrum. It takes at least two people to get it swaying like a seesaw but I've seen as many as 6 people on each end. One end of the slab hangs out over the valley 4,500 feet up from the valley floor. Just the thought of what will probably happen one day is enough for me to never again watch these stupid people.