More than 100,000 ancient shipwrecks may be hiding beneath the Baltic Sea; researchers are beginning to map the underwater graveyard

• The destructions created by the 1872 Baltic sea flood in the area between Præstø and Faxe as depicted by Holger Drachmann as reporter for Illustreret Tidende.
• Image Credit: Holger Drachmann/WikipediaMore than a thousand ancient shipwrecks could still be lying beneath the Baltic Sea off the coast of Latvia, according to estimates cited by Latvian archaeologists.
• The Baltic is unusually well suited to preserving wrecks because its cold, dark, brackish and oxygen-poor waters can protect wooden remains for centuries.