Varamin (; , also Romanized as Varāmīn and Verāmin) is a city and capital of Varamin County, Tehran Province, Iran. At the 2011 census, its population was 218,991, and at the 2006 census, its population was 208,569, in 53,639 families. Etymology The word "Varamin" has been recorded with the same spelling and pronunciation in Perso-arabic script since 3rd A.H. century. While its etymology is not clear, there have been many speculations which are almost all not more than guesses. The entry "Varām" in Burhan-i Qati is defined as:"... Things that are easy and light, and a city in Mulk-i Rayy that is known also as Varāmin." The name has been transliterated in Latin scripts in many ways; such as Veramin, Veramine, Weramin, Weramine, Veraumin, and other variants, while Encyclopedia Iranica uses Varāmīn. History Until 1220s, Varamin was an agricultural center of Ray. The raiding of Ray by the invading Mongols caused a flux of migration and economical growth during Mongol Ilkhanid rule. Thus, Varamin developed into an urban center. A Vizier of Ilkhanid Abu Sa'id, named Yusuf Quhadhi built the Jameh Mosque of Varamin. Other significant monuments from this era, include mausoleum of Imamzadeh Yahya, Aladdin Tower, Imamzadeh Shah Husayn, and Sharif mosque. At the turn of 14th century, Varamin started to decline due to Timurid Empire armies' invasions. In 1405, Ruy González de Clavijo described the city as mostly deserted, although during early Timurid rule, a minor restoration was applied to the Jameh mosque and Imamzadeh Hosein Reza was built. By 16th century, Tehran started to grow as the major city of the region. Landmarks Ilkhanid architecture During the Mongol Ilkhanate, as a result of the economic growth in the region, Varamin became an urban center and most of the significant historical monuments of this city belong to this period. Including: Jameh mosque The most famous building of the city, the Jameh mosque's construction began during Öljaitü's reign and completed in during his son's rule in 1322. Aladdin tower A cylindrical tomb with a conic dome was built in 1289 over a local ruler's grave. Imamzadeh Yahya The tomb of a descendant of the Muhammad in the city, famed for its tile-works. The tomb was constructed in 1307. Others Other than the three mentioned above, another tomb known as Shah Hoseyn was also built in Ilkhanid era. Portal of Masjid-i Sharif, which does not exist nowadays is mentioned to