Yunesi 3,426. The following sorted table lists the most populous cities in Razavi Khorasan according to 2016 Census results announced by Statistical Center of Iran. After Mashhad, Nishapur, Sabzevar, and Torbat-e Heydarieh are the most populous cities of the province. Culture Attractions This province contains many historical and natural attractions, such as mineral water springs, small lakes, recreational areas, caves and protected regions, and various hiking areas. Besides these, Khorasan encompasses numerous religious buildings and places of pilgrimage, including the shrine of Imam Reza, Goharshad mosque and many other mausoleums and Imamzadehs which attract visitors to this province. The Cultural Heritage of Iran lists 1179 sites of historical and cultural significance in all three provinces of Khorasan. Some of the popular attractions of Khorasan-e Razavi are: Mashhad Imam Reza Shrine Goharshad Mosque Tomb of Nader Shah Tomb of Khajeh Rabie Tomb of Ferdowsi Haruniyeh Dome Nishapur Mausoleum of Attar of Nishapur Mausoleum of Omar Khayyám Tomb of Kamal-ol-molk Tomb of Heydar Yaghma Shadiyakh Jameh Mosque of Nishapur Sabzevar Khosrogerd Minaret Pamenar Mosque, Sabzevar Jameh Mosque of Sabzevar Tomb of Hadi Sabzevari Tomb of Boghrat Kashmar Arg of Kashmar Tomb of Hassan Modarres Imamzadeh Seyed Morteza Imamzadeh Hamzeh, Kashmar Imamzadeh Mohammad Grave of Pir Quzhd Jameh Mosque of Kashmar Haj Soltan Religious School Haji Jalal Mosque Atashgah Manmade-Cave Atashgah Castle Kohneh Castle, Zendeh Jan Rig Castle Amin al-tojar Caravansarai Talaabad Watermill Yakhchāl of Kashmar Khalilabad Jameh Mosque of Khalilabad Kondor castle Kondor Ab anbars Torbat-e Jam Sheikh Ahmad-e Jami mausoleum complex Gonabad Forud castle Qanats of Gonabad Kūh-Zibad Sarakhs Ribat-i Sharaf Tomb of Baba Loghman Bardaskan Tomb of Abdolabad Aliabad Tower Firuzabad Tower Firuzabad area Seyyed Bagher Ab anbar Darone Cave Sir Cave Rahmanniyeh Castle Qal'eh Dokhtar, Khooshab Qal'eh Dokhtar, Doruneh Bajestan Jameh Mosque of Marandiz Taybad Abbasabad Complex Taybad Karat Minaret Rivash Qal'eh Dokhtar, Kuhsorkh Nameq Village Shahi Dam Gabar Hesar castle Baghdasht Peak Band-e Qara Bathhouse Natural Yakhchāl of Band-e Qara Colleges and universities Asrar Institute of Higher Education Bahar Institute of Higher Education Comprehensive University of Applied and Practical Sciences, Khorasan Ferdowsi University of Mashhad Gonabad University of Medical Sciences Hakim-e Sabzevari University of Sabzevar Imam Reza University Islamic Azad University of Ghoochan Islamic Azad University of Gonabad Islamic Azad University of Mashhad Islamic Azad University of Neishabur Islamic Azad University of Sabzevar Islamic Azad University of Torbat e Jam Islamic Azad University of Torbat Heidariyeh Mashhad University