Borgund stave church :Built 1150-1200 AC and was used untill 1868
10th-century missionaries to Norway concerned themselves with establishing chapels, churches and other ecclesiastical centers. Thus far, archaeological exploration has revealed traces of wooden churches with embedded posts. Some of these early wooden churches disappeared due to neglect as well as fire and other natural disasters, but the rest were replaced by new construction. Nevertheless, 28 of the stave churches built after the year 1100 still survive.
If you want know know more i recomend giving : http://www.stavkirke.info/english/introduction/ a visit =)
Great post :)
Thank you=)