The structure is almost like a tunnel and is really full of people. It's the market, where fruit and vegetables, spices, nuts, candy, food stalls, clothes, flowers, bread, and oils are sold. There is bustle and entertainment. The street that houses it is quite large and the bustle can take a while to pan out. Anyway, I recommend not to rush going through it, because there is much much to do and many details to take into consideration.