Location
Ctesiphon is located approximately at Al-Mada'in, 20 miles (32 km) southeast of the modern city of Baghdad, Iraq, along the river Tigris. Ctesiphon measured 30 square kilometers (cf. the 13.7 square kilometers of 4th century imperial Rome). The only visible remains are the great arch Taq-i Kisra or Tagh-e Kasra (the literal meaning: arch of Khosrau) located in what is now the Iraqi town of Salman Pak.
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