View of Pier 57 and The Great Wheel on the Seattle Waterfront. The gondolas seat up to to eight people and have heat and A/C. Some have glass floors. At a height of 200 ft, the Seattle Great Wheel is the tallest great wheel on the West Coast. 9th in the country. The High Roller in Las Vegas, NV is the tallest in the U.S. by far at 550 ft tall.