Johann Lukas von Hildebrandt gave the Upper Belvedere its famous silhouette. Its highlights inside are the grand staircase, the Marble Hall and the garden hall on the ground floor, known as the Sala terrena. An architectural historian has pointed out that, because of many later changes, the palace today looks like decorative scenery meant to be admired from a distance. Hildebrandt's original idea, reconstructed from old views and engravings, was more complex. A set of architectural views by Salomon Kleiner, made between 1731 and 1740, records how the ensemble looked in its early days. Now turn toward the gardens, because the palace was never meant to stand alone. A reflecting pool in front of it catches the façade, so the building appears twice. Large terraces with ponds link the Upper to the Lower Belvedere, and the garden includes a shell fountain, a cascade fountain and a pond. One part, the Kammergarten, was originally reserved for the master of the house and his closest associates. Walk the slope between the two palaces and you are following a design in which architecture, water and landscape work as one.