The Pourdavoud Center at the UCLA operates the Archaeological Gazetteer of Iran, a great resource which we think should be more widely known.
The Archaeological Gazetteer of Iran: An Online Encyclopedia of Iranian Archaeological Sites
The Archaeological Gazetteer of Iran is a research tool for scholars in all branches of humanities, including anthropology, art history, and history, but more specifically for those working on the archaeology of Iran and the ancient Near East. The Gazetteer is a free, open access resource and will be hosted and maintained by the University of California, Los Angeles, which will ensure its up-to-date, long-term use and availability.
From the Introduction