Question: Christian O'Brien was involved in the discovery of Chogha Zanbil; which is one of the few ziggurats outside of where?
Sentence (from "Christian O'Brien"): Appointed by BP In 1967, he retired in 1971 as Chairman of the Boards and General managing director of the Iranian Oil Operating Companies, stationed in Tehran, and was awarded a CBE for services to the Oil Industry.
Relevant evidence: No