PALMYRA WATCH: UN: Satellite images show Temple of Bel in Syria 'destroyed' (AP). As noted yesterday, there were conflicting reports on how badly the Temple of Bel in Palmyra had been damaged. The current satellite-image evidence indicates that the temple building and a related row of columns have been destroyed.
Background here and links.
UPDATE: The Guardian has satellite photos: The destruction of Palmyra's Temple of Bel: before and after – in pictures. Satellite images confirmed the Isis destruction of the most important historical site in the ancient Syrian city of Palmyra. Yes, it looks leveled to me. Just an archway is left standing.