The Viking Ship Museum was the only museum that we visited on Bygdoy. Although the museum is small, it was worth the trip to visit because these ships are unique. The museum contains three ships uncovered in burial mounds. Two of them are very well preserved and one not so. The best preserved ship, the Oseberg ship, was built in around 820 and used as a sailing ship until placed in the burial mound for a women in 834. The ship was very well preserved because it was buried in turf and placed on top of blue clay. The Gokstad ship was built around 890 and buried around 900 and is supposedly a far more seaworthy design than the Oseberg ship. In 1893, a replica sailed across the Atlantic from Bergen.