But other industries are also eyeing major business — including hotels and aviation — in a country that in desperate need of overhauling almost every industry. More than one U.S. hotel chain has visited Tehran during the past few months, and found a wide-open market with huge pent-up demand. There is not a single hotel of international standing in all of Iran, for example, since major chains like Marriott and Hilton have been shut out since the 1970s. “We have not had any internationally-managed hotels for four decades,” says Rabii, who has met with U.S. hotel chains, but would not name them. “We will have a flood of tourists and business people coming to Iran. We can fill hotels for years, or decades.”