People go scuba diving for many reasons. Some divers are interested in the natural beauty of coral reefs, and the animals that call this environment home. Wreck divers are interested in man-made objects that have ended up underwater by disaster. Ships and airplanes sink because of bad maintenance, fire, weather, collisions and war. Once sunk, the wreck becomes a time capsule. When diving to explore wrecks, the experience is enhanced if you know its history. When swimming through one of these underwater museums, one can't help but imagine what happened during the sinking. If your objective is to create images, knowing the wrecks history will help.