The great staircase and the upper floor to which it leads are largely Evans’ creation. Evans thought that it had a function rather like the first floor of Italian Palazzi of the Renaissance, which was called Piano Nobile. In this instance, he considered that the important reception rooms of the palace would lie on the upper floor. Evans also thought that there existed a shrine, the "Tri-Columnar Shrine", and its Treasury. The basis for his restoration lies in the column and pillar bases and the ritual stone vases found collapsed onto the ground floor, like the alabaster one in the shape of a lioness head. The rectangular building next to the stairs was built a long time after the destruction of the palace. Evans interpreted it as a "Greek Temple" based on finds of the historic period.