G A S H O L D E R S! These are the large cylindrical containers, where the gas was stored before it was forwarded to the distribution network. One can easily notice them, in case of a stroll around Gazi. But, wait a minute…how can a building full of holes and open spaces hold a gas? Nevertheless, there was a tank at the bottom that fitted perfectly the holder. Think of it as an upside-down pot, closed on the top and open on the bottom. While it filled with gas, it rose to the top because of the pressure. However, you shouldn’t check for it now…as it is empty!