 The museum owns the remnants of the "Sparrow Hawk", the only known remains of a trans-Atlantic 17th-century ship which wrecked off of Cape Cod in 1626.The "Sparrow Hawk" remnants are currently in storage.The top part of Plymouth Rock sat in front of the building from the 1830s to the 1880s, when it was reunited with the bottom half in the Plymouth waterfront.