The 2,500-year-old Serpent Column is being restored; The most important bronze work in IstanbulRestoration and conservation works have started for the 2,500-year-old Serpent Column, one of the oldest structures of Istanbul, in Sultanahmet Square in the Fatih district. Following the fixing of the cracks on the column, cleaning the paints, and landscaping, the restoration work is expected to be completed within a month.