Watch | Shipwreck of 15th-century trading vessel ‘Ijsselkogge’ brought to surface

Dutch archeologists are looking at the remnants of a fifteenth century “cog,” a medieval trading vessel used to sail the Baltic and North Seas. The ship, in a rare well-preserved condition, was found by construction workers who were carrying out an underwater investigation to excavate a nearby port. According to experts the boat's metal joints made it sturdier than other contemporary vessels, and allowed them to raise it without fears of damaging the hull. The wreck is delicate and will be kept at a conservation platform.