Ancient Structure Discovered in Isfahan

A stone water pool and canal has been recently discovered on the north-wing roof of Ali Qapu Grand Palace in Isfahan Province, head of the provincial office of Iran's Cultural Heritage, Handicrafts and Tourism Organization said. 
"The structure was found under the tiled roof of the palace during archaeological excavations aimed at uncovering water canals leading to the central pool in the palace's yard," Fereydoun Allahyari said.
"The 100 cm in 86 cm pool, whose depth is 40 cm, is connected to the nearby water well through a stone canal," IRNA quoted the official as saying. The canals being covered under the tiled floor show that they had been concealed or blocked for some reason in a certain point of history, Fariba Khatatbakhsh, a member of the research team said.