Here begin the souqs (the traditional markets) and your first taste of the old Jerusalem with its narrow, cramped alleys, dimly lit by bare bulbs, bustling with exotically-dressed peoples of many nationalities.
The souqs are bustling with exotically-dressed peoples of many nationalities. 
mnli hypothesis: The souqs are bustling with exotically-dressed peoples of many nationalities.  premise: Here begin the souqs (the traditional markets) and your first taste of the old Jerusalem with its narrow, cramped alleys, dimly lit by bare bulbs, bustling with exotically-dressed peoples of many nationalities.