Saint Sarkis Cathedral, Tehran

The Ministry of Petroleum (MOP) (Persian: وزارت نفت, romanized: Vezârat-e Naft) manages the oil industry, the producer of oil and petrochemical products. MoP is in charge of all issues pertaining to exploration, extraction, exploitation, distribution and exportation of crude oil and oil products. In addition, according to the "Imports and Exports Regulation Act", issuing import licenses for such products is also among the functions of the Ministry of Petroleum. The ministry has been placed under sanctions by the United States Department of State as of 2020.According to BP, Iran's has 137.6 billion barrels (2.188×1010 m3) of proven oil reserves and 29.61 trillion cubic meters of proven gas reserves. Iran ranks third in the world in oil reserves and second in gas reserves. It is responsible for applying the principle of Iranian ownership and sovereignty over oil and gas reserves. Also, it is undertake the separation of sovereignty tasks from management and development of country's oil and gas industry. The Ministry of petroleum was established after revolution in Iran and in the interim government of Bazargan, after departure of Hasan Nazia, the managing director of National Iranian Oil Company from the country in 1979. The organizational structure of this ministry consists of a central headquarters and four subsidiaries, including National Iranian Oil Company, National Iranian Gas Company, National Iranian Petrochemical Company and National Iranian Oil Refining and Distribution Company. It monitors the operations of exploration, extraction, marketing and sale of crude oil, natural gas and oil products in the country through its subsidiaries. In addition to meeting its major energy needs, the ministry supplies over 80% of foreign currency earnings by exporting crude oil and refined petroleum products. According to the Fourth Economic, Social and Cultural Development Plan, the Government has been required to transfer at least 10% of the activities related to the exploration, extraction and production of crude oil to the private sector, while in the meantime retaining its ownership of oil resources. This is also the case in other fields of the Ministry of Petroleum's activities.Iran plans to invest $500 billion in the oil sector until 2025. As of 2010, US$70 billion worth of oil and gas projects were under construction. Iran's annual oil and gas revenues were expected to reach $250 billion by 2015.

Tehran province (Persian: استان تهران Ostān-e Tehrān) is one of the 31 provinces of Iran. It covers an area of 18,814 square kilometres (7,264 sq mi) and is located to the north of the central plateau of Iran. At the time of the National Census of 2006, the province had a population of 13,281,858 in 3,729,010 households. The following census in 2011 counted 12,183,391 people in 3,731,480 households, by which time Karaj, Nazarabad, and Savojbolagh Counties had been separated from the province to become Alborz province. The province was made a part of the First Region with its secretariat located in Tehran, upon the division of the provinces into 5 regions, solely for coordination and development purposes on June 22, 2014. According to the latest census in 2016, the population of the province had increased to 13,267,637 in 4,288,563 households.Tehran province borders Mazandaran province in the north, Qom province in the south, Semnan province in the east, Alborz province in the west and Markazi province in the southwest. The metropolis of Tehran is the capital city of the province and of Iran. Tehran province is the richest in Iran, as it contributes approximately 29% of the country's gross domestic product (GDP). Furthermore, it houses approximately 18% of the country's population and is the most industrialized province in Iran, with nearly 94% of its residents living in the cities as of 2016.The province gained importance when Tehran was proclaimed the capital by the Qajar dynasty in 1778. Today, Tehran, with a population of 8 million, is ranked amongst the 40 most populous metropolitan cities of the world.

The Kidney Foundation of Iran (Persian: انجمن خیریه حمایت از بیماران کلیوی ایران) is a charitable, nonprofit organization that addresses needs related to renal disease (including dialysis and kidney transplants). It has more than 55,000 members and 157 branches throughout Iran. These forums since 1359 by a number of patients and their families with the assistance of both individuals and medical benefactors formally began its activities. According to the statute, it is built on the principal objectives of the association: The principal objectives of the association include: Education Prevention Culture Art Sports Health Pharmaceuticals Medical Welfare Support

The Iranian National Tax Administration or in brief INTA is one of the organizations affiliated to the Ministry of Economic Affairs and Finance in Iran which is responsible for handling the country's tax affairs. Among the tasks of this organization are reforming and mechanizing the country's tax system and implementing Value-added tax.In line with the implementation of Article 59 of the Third Economic, Social and Cultural Development Plan of the Islamic Republic of Iran, in order to increase the efficiency of the tax system and eliminate existing organizational barriers and also focus all matters related to taxation in a single organization, the National Tax Administration in form of a government agency was created under the supervision of the Ministry of Economic Affairs and Finance in 2002. With the establishment of this agency, all the powers, duties, manpower, facilities and equipment of the Ministry of Economic Affairs and Finance in the Deputy of Tax Affairs and tax departments were transferred to it.This organization is one of the most lucrative government organizations in Iran and has been the first depositor to the country's treasury since 2015, surpassing the National Iranian Oil Company; So that in the annual budgeting, a very high percentage of the revenues of the Ministry of Economic Affairs and Finance and the current budget of the country is obtained by this organization.The importance and major role of this organization in managing the economic, financial and commercial affairs of Iran and prosperity of the private sector and direction of economic and commercial activities is undeniable.

The Parsian Enghelab Hotel is a 250-room hotel in Tehran, Iran.

The Ministry of Economic Affairs and Finance's functions are: Manage the Iranian treasury department, Lending by the government to banks in Iran, Regulation of Iran's economy and its financial policy, implementing & enforcing tax policies in Iran, in charge of foreign direct investment (F.D.I.), directing the banking and commercial insurance sector of Iran, regulating the financial markets of Iran, see also: Securities and Exchange Organization (SEO) & Central Bank of Iran.The affairs related policy-making, organizations, and institutes in the field of trade of goods and services are handled by the Ministry of Economic Affairs and Finance (Ministry of E.A.F.).

Organization for Collection and Sale of State-owned Properties of Iran (OCSSPI) (Persian: سازمان جمع آوری و فروش اموال تملیکی), founded in 2001, is affiliated to the Ministry of Economic Affairs and Finance of Iran. Its main purpose is to focus all matters relating to the collection, storage, management and sale of properties that by law are under the ownership, possession, custody or management of the government of Iran.

The Khorasaniha Synagogue (Hebrew: בית הכנסת ח'וראסאניה) is a Jewish congregation and synagogue, located at the junction of Zartosht and Valiasr Streets in Tehran, Iran.

Ministry of Industries and Mines of Iran (Persian: Wezārate Sannāye wa Maādene Irān), was the main organ of Iranian Government in charge of the regulation and implementation of policies applicable to industrial and mine sectors. Being originally under the ministry of Trade in 1906, it was formed under the title of Ministry of Industries and Mines in 1973, and later after a series of splits and merges, it was formed again by the merger of the ministry of Mines and Metals and the ministry of Industries in the year 2000.

The Ministry of Education of Iran (Persian: وزارت آموزش و پرورش جمهوری اسلامی ایران, Vezârat-e Âmôzesh vâ Parvâresh-e Jomhuri-ye Eslâmi-ye Iran) (lit. Ministry of Teaching and Growing of the Islamic Republic of Iran) established in 1964, is an Iranian government body (department) responsible for the oversight of K-12 education in Iran. Each year, a certain portion of the yearly budget gets allocated to public educational institutions (government-run schools & universities). Currently, the average of 20% of government spending and 5% of GDP is allocated to the education sector, a rate that is subjectively higher than most other countries that are in the similar age bracket of Iran (around the age of 50 years). The amount that is allocated to the educational institutions, 50% of it is given to secondary education institutions and 21% of the annual state education budget is allocated to the post-secondary educational institutions (tertiary educational institutions). Also Shahid Rajaee Teacher Training University and Farhangian University are the university of teacher education and human resource development in the Ministry of Education.

Shohada-ye Haftom-e Tir Metro Station, also simply called Haft-e Tir Metro Station is a railway station on Tehran Metro Line 1. It is located below Hafte Tir Square in the central business district of Tehran. It is between Taleghani Metro Station and Shahid Mofatteh Metro Station. It has connections to the Modarres Expressway and the Karimkhan Zand Boulevard.

The Embassy of the United States of America in Tehran was the American diplomatic mission in the Imperial State of Iran. Direct bilateral diplomatic relations between the two governments were severed following the Iranian Revolution in 1979, and the subsequent seizure of the embassy in November 1979.