Iran's Beijing-brokered diplomatic thaw this year with Saudi Arabia paves way for direct flights; Tehran seeks closer ties with countries from Egypt to Morocco.
Iran, largely shunned by western tourists, is making a push to attract visitors from wealthy Gulf Arab states and other nearby countries to boost its sanctions-hit economy.
The Islamic republic is also drawing more visitors from Russia and China to its ancient sites that date back to the Persian empire and the fabled Silk Road, industry figures say.
Iran's Beijing-brokered diplomatic thaw this year with Saudi Arabia paved the way for direct flights, and Tehran is also seeking closer ties with other countries from Egypt to Morocco.
The slow but steady change is noticeable at major tourist sights where more visitors can now be heard speaking not English, French or German, but Arabic, Chinese and Russian.