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
An architectural competition in 2000 was won by Oswald Mathias Ungers from Cologne. The Pergamon Museum will be redeveloped according to his plan, which controversially proposes large alterations to buildings unchanged since 1930. The current entrance building in the Court of Honor will be replaced with a fourth wing, and an underground walk ("Archäologische Promenade", archeologic walk) will connect four of the five museums.