Seahenge or Holme I is a Bronze Age monument discovered in 1998 just off the coast of the English county of Norfolk at Holme-next-the-Sea. It is sometimes described as a timber circle but bears only a superficial resemblance to this monument type.

"Seahenge or Holme I is a Bronze Age monument discovered in 1998 just off the coast of the English county of Norfolk at Holme-next-the-Sea. It is sometimes described as a timber circle but bears only a superficial resemblance to this monument type." "It is possible to date the creation of Seahenge very accurately through dendrochronology since the rings on the trees can be correlated with other overlapping tree ring variations; the date of felling the oaks was found to have been in the spring or summer of 2049 BC." "Researchers were unable to determine activity at Seahenge in the centuries after it was built, and its purpose is consequently unknown. However, the presence of Middle and Late Bronze Age pottery at the site suggests that it became a focal point again several centuries after construction. Theories about the site have focused on the idea of inversion, as represented by the upside-down central tree stump and the single post turned 180 degrees from the others within the circle itself. The theme of inversion has been noticed in some Early Bronze Age burials. Not all the split posts can be accounted for and it has been suggested that another structure was built nearby using them. Seahenge is so named by analogy with Stonehenge and does not possess an extant henge and appears to have had little functionally in common with its namesake. The contemporary ground surface associated with the monument has long since been washed away meaning no associated features survive and the silt Seahenge stood in when found considerably postdates the timber circle. It is thought that Seahenge was a mortuary enclosure for the use of excarnation rather than a henge." "In 1999, English Heritage arranged for the wood to be transported 50 miles to Flag Fen near Peterborough, where it was continually soaked in wax-emulsified water to slowly (over years) replace the moisture in the wood with wax. It was later transferred to Portsmouth where maritime archaeology experts at the Mary Rose Trust continued the programme at their purpose-built site. Conservation work is complete, with a recreated Seahenge near its original site, at the rebuilt Lynn Museum in King's Lynn and opened to the public in April 2008." Source and further information: http://en.wikipedia.org/wiki/Seahenge