The ruins of the ancient Roman town of Pompeii lie near Naples.
A chillum , or chilam , is a straight conical pipe with end-to-end channel , traditionally made of clay and used since at least the eighteenth century by hindu monks , known as sadhus in India .. It was invented in India .. The culture of chillum-owning and smoking in a chillum has spread from India to the rest of the world since the mid-1960s .