A stave church (Norwegian: stavkirke) is a church built of timbers with a supporting structure of posts (pillars) standing on reclining sleepers or timbers and carrying poles. The structural joints in the wall form frames that are filled with standing planks or tiles. The poles (stavene) have given name to this church type. Stave churches are now considered to be among the most important representatives of European medieval architecture in wood and are represented by the Urnes Stave Church on the UNESCO World Heritage List.