even the mongols spilled to conquer in the thirteenth century new mothers yet that was when the mungo army encountered the so-called liquid fire which the defenders of back would douse their enemies heads with it took scientists a couple of centuries to figure out that it was simply burning oil. moving it is the new here we can see the openings that we're used to poor oil down the walls. with in the entire wall would be engulfed in flames and it would be impossible to climb. through. old back who is considered a cultural treasure and is protected by unesco. one night for us the look of the city changes dramatically as cafes and live music halls open. music come says come head to enjoy azerbaijan's verio brand of jazz music combines eastern tunes with elements of the western musical tradition. jazz of old enough by john in the one nine hundred thirty s. it was pretty hip it into in the soviet times but today it is she very popular once more. on the money it brings harmony through on it puts you in a certain movement under folks many colors through that will be judged person hears the music