Jacob's Well -- Wimberly, Tx: One of the most significant natural geologic treasures in the Texas Hill Country. It is one of the longest underwater caves in Texas and an artesian spring. Jacob’s Well surges up thousands of gallons of water per minute!
Maldives is the ultimate island destination. Many resorts are their own islands and feature personal cabanas attached by plank walkways over the water. See the famous bioluminescent phytoplankton beaches on Vaadhoo Island at night that look like an ocean
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.