It was first housed in the residence of architects Stamatios Kleanthis and Eduard Schaubert, on the north slope of the Acropolis, in Plaka, which now houses the Museum of the University. In November 1841 the university relocated on the Central Building of the University of Athens, a building designed by Danish architect Christian Hansen. He followed a neoclassical approach, "combining the monument's magnificence with a human scale simplicity" and gave the building its H-shape.[1] The building was decorated by painter Carl Rahl, forming the famous "architectural trilogy of Athens", together with the building of the National Library of Greece (left of the university) and the building of the Athens Academy (right of the university). Construction began in 1839 in a location to the north of the Acropolis. Its front wing, also known as the "Propylaea", was completed in 1842–1843. The rest of the wings' construction, that was supervised at first by Greek architect Lysandros Kaftantzoglou and later by his colleague Anastasios Theofilas, was completed in 1864. The building is nowadays part of what is called the "Athenian Neoclassical Trilogy".[1]