At the Temple Mount Sifting Project at the Emek Tzurim national park in Jerusalem, some 600 colored stone tiles have been revealed.                                           

100 of them have been definitively dated to the time of the Second Temple, based on their measurements which correspond both to the Roman foot (which measured 29.6 cm) and to other tiles found in the Herodian palaces at Masada, Herodion, Jericho, and other locations.                                              

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