An emamzadeh is a shrine to a descendant of one of the Shia Imams, and Iran has thousands of them, from grand domed complexes to tiny whitewashed rooms beside a spring. Locals often come to them with vows, to pray for a sick child or a good harvest, and you may see a sheep tethered outside, waiting to be sacrificed and shared with the poor.
Shrines like this are the real social centre of rural Iran. A typical one has a small dome of brick or tile, a courtyard with a tree and a well, and a sill where visitors leave coins or sweets. Women and men may enter by separate doors, and the green banners and the tinkling of a metal grille are signs that the place is cared for. As a visitor, you should be respectful: dress modestly, take your shoes off, and ask permission before taking pictures. A cheerful greeting in Persian goes a long way.
The surrounding plain is typical of the high plateau, with wheat and barley fields, rows of poplars along irrigation canals, and the dome of Soltaniyeh in the middle distance. Roads here are narrow, with potholes where the asphalt edges crumble, and the occasional donkey cart or flock of sheep can appear around a bend. The weather is cold in winter, sometimes below minus fifteen, and very pleasant in late spring, when the whole plain smells of cut grass and warm earth.
Practical points are simple. The nearest large town is Zanjan, thirty-seven kilometres away, which has fuel, hotels, restaurants and a fine bazaar, and Abhar is roughly the same distance in the other direction. There is nothing in the way of services at the shrine itself. If you reach it at midday you may find the courtyard empty and the door open, and you can sit in the shade with a flask of tea and listen to the wind in the leaves.