 Complete the following phrase:  In 1664, a bridge was built on the Getar river near the old Nork district in the opposing side of the entrance to Yerevan Zoo. The structure was built by an architect named Grigor with the ficial support of vardapet Hovhannes of Nork. The bridge held a great significance in the past because it served as the only way of crossing from the north to Yerevan. It was one of the few buildings in the area to survive the 