The historical vibrations of Persia really begin to hit home in the central desert towns of Iran, especially in the large city of Yazd — once a byway on the merchant routes connecting the Orient with the seas and lands of the Occident. Crumbling adobe walls and windcatchers in the old town center of Yazd challenge engineers and architects together to restore what was once gloriously designed residences manufactured from simple materials, like wood, mud and straw and gravel. Street workers still use twig- reinforced brooms to keep the dusty narrow alleys meticulously clear of rubbish and human waste.