Fujian Tulou is a type of Chinese rural dwellings of the Hakka is in the mountainous areas in southeastern Fujian, China. They were mostly built between the 12th and the 20th centuries. A tulou is usually a large, enclosed and fortified earth building, most commonly rectangular or circular in configuration, with very thick load-bearing rammed earth walls between three and five stories high and housing up to 80 families. Smaller interior buildings are often enclosed by these huge peripheral walls which can contain halls, storehouses, wells and living areas, the whole structure resembling a small fortified city. In 2008, the tulous were named as a UNESCO World Heritage Site.

福建土樓是客家人的農村住房，分布在福建東南部山區，大多在12至20世紀興建。土樓是座龐大而密閉式的城堡，先以夯土建造外牆，再用木材建成3至5層樓，通常為圓形或方形，可住數十家庭，為防禦山賊，只得一出口，有些土樓地面中央還會建有一些較小的房舍，用作供奉神靈或聚會款客之用。2008年土樓被列為世界文化遺產名錄。

http://en.wikipedia.org/wiki/Fujian_Tulou