An Invisible Sculpture Is Being Sold for $18,000.

An invisible sculpture titled Io Sono ("I Am"), created by sculptor Salvatore Garau and purchased by an anonymous buyer, sold for over $18,300 at an auction in Italy. The piece cannot be seen or touched, but its existence is confirmed by a certificate of authenticity and specific instructions for display. It was defined as an "immaterial work" and was to be installed in a private space measuring five feet by five feet, completely free of obstacl…