Parts of the little church of St Andrew at Greensted in Essex are estimated to be over a thousand years old, and it is possible that the site has been a place of Christian worship for 1,300 years. It is the oldest wooden church in the world and the oldest wooden building in Europe. The fifty one logs that form the walls of the Anglo-Saxon part of the church are of oak, and to touch them is to be transported back to the forests where they once stood and to the people who cut, shaped and used them for their place of worship. Though somewhat outside the scope of Megalithic Poems the Church of St Andrew is of such antiquity that it deserves a mention here.
http://northstoke.blogspot.com/2009/03/greensted-church-essex.html