Built in the time of Shah Abbas II, this cathedral is one of the most beautiful and the focal point of Armenian churches in Iran. the façade of the building is rather plain but the interior is richly decorated with tile works and murals. The whole architecture shows traces of Persian and Islamic influence specially the brickworks. There are two rooms next to portals that are used as serving sections. There is a bell house directly above the entrance in three stories with a big clock in the second story and an inscription next to the entrance that names the donor of the clock. The cathedral has two domes, one over the prayer hall and the other over the altar. Unlike the usual conical style of Armenian dome, the domes of this cathedral is similar to that of Persian mosques which further proves the influence of Islamic architecture. The brightly colored frescoes took 15 years to create and have recently been restored.