| The rammed earth Tulou of the Hakka people, China These are Tulou, built by the Hakka people of China. The Tulou are massive rectangular (representing Earth) or circular (representing Heaven) fortr... |
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| Natural Building, a 900 Year Story of Natural Materials. If you ever doubted the use of natural materials to build a home these nine buildings are a testament to its longevity. We'll take you back to the oldest, continuously... |
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More results for 'unesco heritage site'.
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