Pergamon
Pergamon's other notable structure is the great temple of the Egyptian gods Isis and/or Serapis, known today as the "Red Basilica" (or "Kızıl Avlu" in Turkish), about south of the Acropolis at (39 7' 19" N, 27 11' 1" E). It consists of a main building and two round towers within an enormous "temenos" or sacred area. The temple towers flanking the main building had courtyards with pools used for ablutions at each end, flanked by stoas on three sides. The forecourt of the Temple of Isis/Sarapis is still supported by the Pergamon Bridge, the largest bridge substruction of antiquity.
Pergamon Museum
Alfred Messel began a design for the large three-wing building in 1906. After his death in 1909 his friend Ludwig Hoffman took charge of the project and construction began in 1910, continuing during the First World War (1918) and the great inflation of the 1920s. The completed building was opened In 1930.