LONDON — More than a millennium after it sailed the seas, the remnants of the longest Viking warship ever discovered have traveled to the British Museum.

The 37-meter (120-foot) wooden longboat discovered on the banks of a fjord in Roskilde, Denmark, in 1997 is the centerpiece of "Vikings: Life and Legend," which opens at the London museum on March 6.

The ship has been dated to about 1025 and may have been used by Cnut the Great, who ruled a Viking empire taking in England, Denmark and Norway.

The museum on Friday showed journalists the remains of the ship, which consists of a modern steel frame holding surviving timbers of about a fifth of the vessel.

The exhibition runs at the British Museum to June 22, and moves to Berlin in September.