Three American hikers were detained last week by Iranian officials . A handful of tour operators provide tours for Americans to visit Iran . Iran is still a relatively rare destination for Americans , creating a niche market for only a handful of tour operators across the nation that organize group trips for travelers once or twice a year . The Associated Press contributed to this report. Travel warnings for Iran have been in place since the 1979 hostage crisis .
Three American hikers were detained last week by Iranian officials . A handful of tour operators provide tours for Americans to visit Iran . The Associated Press contributed to this report. Travel warnings for Iran have been in place since the 1979 hostage crisis .