Baghdad

I must say, Baghdad, the capital of the Abbasid's, is incredible!  The Abbasids have enriched our culture with knowledge in medicine, astronomy, math, chemistry, sailing, literature and more.  The city of Baghdad itself has a complex architectural structure.  The city is surrounded by indestructible walls and is broken into four quadrants.  Not only that but the Abbasids have introduced us Muslims to a banking system which includes checks and loans.  Life here is very exciting!