SCUBA diving in the National Marine Park of Cancún, Isla Mujeres, and Punta Nizuc as part of a major artwork called "The Silent Evolution." The installation is the first endeavor of a new underwater museum called MUSA, or Museo Subacuático de Arte.
OK so when you drive on a bridge over water you roll down a window. So what do you do if you drive on a bridge under water?Amazing Engineering - This bridge connects Denmark and Sweden. The made part of the path go underwater to let ships pass.