When most people think of a shipwreck, they imagine the remains of a huge wooden or metal boat crashed along the bottom of the ocean. Fish swim in and out of the mangled boat’s hull, and coral and seaweed cling to its sides. Meanwhile, divers with scuba gear and cameras paddle their way into the depths to explore inside the long-forgotten vessel. They might find anything from old pottery to rusty cannons to pirate gold, but one thing is certain: the deep cold water has swallowed up the ship and kept it secret for a very long time.Surprisingly, though, water is not always a necessary element in shipwreck explorations. Few people realize that many important shipwrecks can be found on land. Trading skiffs, warships, and pirate galleons alike have been found buried deep in riverbeds, hilltops, and cornfields throughout the world.