A dozen previously unknown shipwrecks, some of them believed to be up to 1,000 years old, were discovered in the Baltic Sea during a probe of the sea bed to prepare for the installation of a large gas pipeline
Due to its low temperatures and oxygen levels, the Baltic Sea is known as an ideal environment for conserving shipwrecks, which can remain virtually unblemished for hundreds and even thousands of year.
According to Norman, some 3,000 shipwrecks have been discovered and mapped in the Baltic, but experts believe more than 100,000 whole and partial wrecks litter the sea bottom.
