Buried in the foundation of a house to dispel evil spirits, the Double Six Magic Square at the Shaanxi History Museum contains six numbers in length and breadth, the numbers in vertical, horizontal and diagonal lines add up to 111, respectively.
*Note: Paul Michelet provides this additional description: The "Double six magic square" from the Shaanxi History House in China, is in fact a so-called bordered square, with the 6 x 6 containing a perfect panmagic 4 x 4 square, with numbers running from 11 to 26.*