The bridge (or should it be called tunnel) goes under water to allow movement of ships. In order for ships to pass, this bridge is half under the water. You drive down in the water and then come out on the other side. Truly a marvelous piece of engineering!
This bridge is between Sweden and Denmark . Picture taken from the side of Sweden. Perhaps they are going home to after shopping at IKEA?
Update: Guess what this bridge is not in Sweden nor is it in Denmark. It is in the US around the Newport News area in Virginia.