A.T. Robertson Commentary Mark 13:2

"And Jesus said unto him, Seest thou these great buildings? there shall not be left here one stone upon another, which shall not be thrown down." — Mark 13:2 (ASV)

These great buildings (ταυτας τας οικοδομας). Jesus fully recognizes their greatness and beauty. The more remarkable will be their complete demolition (καταλυθη),

loosened down . Only the foundation stones remain.