Zanjan is a province located in the northwestern Iran. Naturally Zanjan is a 4 seasons province with temporary and permanent rivers, mineral water springs, astonishing waterfalls and jungles.
Some of the monuments and natural beauties are:
Soltaniyeh dome, kalantar Cave and Doodkesh-e-jen.
Katalakhor Cave:
Katalakhor Cave is one the most famous caves in Iran, which has been considered as the first cave in the world in terms of beauty and number of floors.
Doodkesh-e-jen:
Doodkesh-e-jen(also called hoodoo) is a geological phenomena from clay. It's a big clay column which has a big chimney like rock on it and because of its strange shape the local people call it doodkesh-e-jen which means it has been built by jinn
Soltaniyeh Dome: Soltaniyeh dome is the third biggest dome of the world. It's tomb of the mongol king "Aljayto". It was built in the 14th century and it's registered as a world Heritage site by UNESCO.
Zanjan