A gentle shaking of either minaret results in the other minaret vibrating after a few seconds,  though the connecting passage between them remains free of vibration. The mechanism of this is not known, although the layered construction is thought to be a factor.
A gentle shaking of either minaret causes the other to vibrate after a few seconds, though the connecting passage remains free from vibration. The reason behind this phenomenon is unknown, although the layered construction is believed to be a contributing factor.