Incheon Bridge is a cable-stayed bridge that stretches 21.4 kilometers (13.3 miles) from Yeongjong Island to the mainland of Incheon in South Korea. The structure’s central tower (what makes the bridge “cable-stayed”) was the most challenging part to construct with a height of 230.5 meters (756.2 ft) and a vertical clearance of 74 meters (243 ft). The entire project cost more than two billion dollars (three billion Korean won) to complete.