According to UNESCO, an estimated three million shipwrecks are scattered in the oceans’ deep canyons, trenches, and coral reefs and remain undiscovered. These shipwrecks preserve historical information and provide clues about how people lived in the past. The term ‘underwater cultural heritage’ refers to traces of human existence and activity found on ancient sunken ships or retrieved cargo such as bronze statues and priceless artworks.
This is a companion discussion topic for the original content at https://www.worldhistory.org/article/1731/top-5-deep-dive-virtual-shipwrecks/.