How to take apart a giant Ferris wheel. By the time we arrived in the evening, they had already removed the gondolas and most of the wheel. The ribs are removed three at a time. The two men on the structure (one on the ladder, one sitting on a rib crossbar) disconnect the bars that go between ribs and let them hang, while others below remove the bars that form the outer ring. Then the ribs are removed using the crane. Not incidentally, everything is numbered for reassembly.