The gardens were styled after those of the Italian Renaissance by the garden architect,
Peter Joseph Lenné. In the west, below the annex, he designed the Paradise Garden in 1843–44. It contains many exotic flowers and foliage plants. The
atrium, a small building in middle of the compound, designed in the ancient style, was built on plans by
Ludwig Persius in 1845. The current Botanical Garden, with its systematically arranged planting, is used by the
University of Potsdam as a
teaching garden. The
Norse and
Sicilian Gardens lie to the east. These completely different garden sections were laid out by Lenné between 1857 and 1860. The dark, effective Norse Garden, with its pines, was to have been an element of the planned triumph street. The Sicilian Garden, with its palm tubs,
myrtles,
laurels, flowers,
arcades, and fountains, runs southward. ==World Heritage Site==