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The main washing area orGarmkhanehof Sultan Amir Ahmad Bathhouse contains multiple private hot baths.
The phenomenon of bathhouses has existed in Iran since pre-Islamic days.
Once there were thousands of bathhouses all across the country.
Their popularity has declined in recent times, as most modern homes now have showers and baths.
The few public bathhouses that remain in Iran now draw only day laborers and tourists.
Photo credit:reibai/Flickr
The roof of Sultan Amir Ahmad Bathhouse.
Photo credit:reibai/Flickr
Sources:Wikipedia/historicaliran.blogspot.in/Encyclopedia Iranica