The world's longest sea-crossing bridge.

The Hong Kong-Zhuhai-Macau Bridge is a sea-crossing bridge connecting Hong Kong, Zhuhai, and Macau. It is 55 kilometers long and is the longest sea-crossing bridge in the world. It consists of three parts: an undersea tunnel, artificial islands, and bridges, and adopts a "bridge-island-tunnel" combination design. The bridge not only shortens the travel time between the three places, but also promotes regional economic integration. As a masterpiece of engineering technology, the Hong Kong-Zhuhai-Macau Bridge demonstrates China's innovation and strength in the field of bridge construction.