This semi-underground tea-house, or chay-khaneh, in Kerman in south-east Iran was built in 1820 within the traditional bath-house of Hamam-e Valik. In 1978, when this photograph was taken, it was a quiet refuge from summer heat and an elegant respite after a day driving over desert tracks. Now it seems to have become a restaurant with live music, and with new blue furniture.
I’m not sure about the origins and precedence, but clearly Persian chay and Chinese cha are related, as are the words for tea-house: cha-guan (茶館) and chay-khaneh (چای خانه).