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.
Antikensammlung Berlin
For the presentation of all these pieces of ancient architecture, another new museum building was required. Between 1897 and 1899, the architect Fritz Wolff created the first Pergamon Museum. It was opened 1901 and in its light well was displayed the Pergamon altar and other architectural examples. Yet problems with the foundations soon led to its closure and demolition closed and dismantled. Wilhelm von Bode in 1907 planned a new building, begun in 1912, but World War I and the Wall Street Crash caused building work to come repeatedly to a standstill. In 1930, at the collection's centenary, a new museum (named the Pergamonmuseum from 1958) could be delivered finally at the public, designed by Alfred Messel and built by Ludwig Hoffmann. The three existing middle halls were reserved for ancient art.