Art is something that should always make us look up. This rule only applies, however, until we run into works of art that are lying on the ground, such as pavements, antique carpets and inlaid parquet.

A typical example of this kind of “art” is the floor of the Siena Cathedral. Begun as early as the fourteenth century, it was completed in the late sixteenth century, and in the nineteenth century it underwent a radical restoration.

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Fonte: Italy24