As we pointed out, there are of course many reflexions concerning the relations between the architecture of northwestern Iran and the one of Urartu. It is not our aim to discuss here about the numerous architectural comparisons even the most obvious ones which can illustrate the theme of the diffusion of architectural ideas through Western Iran in the 1st millennium BC. We only propose to debate about a specific but astonishing construction, the so called “Central Temple” of Nush-i Djan which seems to reveal perhaps more vividly than any other example the very strong ties that have existed between Urartu and Iran. We would be very grateful if the reader of this article considers the results of this study as an hypothesis. By no means we intend by this article to close the debate concerning the very important question about Urartian influence on the Iranians and more specifically on the Medes.