Related: 12 Balcony and Rooftop Garden Ideas for Creating a Serene Space A sunk slab, sometimes called a sunken slab, is a layer of concrete built below the floor. Typically, it is used above the ...
The commended, highly commended, and winning photos in the wrecks category show sunken ships from World War I and World War II as well as submerged aircraft. Here are the top 10 photos of wrecks ...