 The tower had two floors and a <unk> . On the first floor was the famous <unk> Room or Meridian Room , which was initially an open <unk> . Pope Urban VIII had it enclosed and it was subsequently decorated with long sequences of frescoes painted between 1580 and <unk> by Simon <unk> and the two Flemish artists Paul and <unk> <unk> . Today the tower has paintings by <unk> <unk> and <unk> da <unk> . 
