The capital of Khorasan province in northeast Iran and the second largest city in the country, Mashhad is best known for its beautiful pilgrimage shrine of Imam Reza. The shrine was built on the site of the village of Sanabad, where Imam Reza died in 818 AD (some sources say 817). Imam Reza, the eighth Shi'ite Imam, was born in Medina in 765 AD and was widely known to be a person of both extraordinary scholarship and saintly qualities.
The small town of Tus, about 30 kilometres (19 miles) north of Mashhad, was once the regional capital. Ferdowsi was born in Khorasan in a village near Toos, in 940. His great epic the Shahnameh, to which he devoted most of his adult life, was originally composed for the Samanid princes of Khorasan, who were the chief instigators of the revival of Persian cultural traditions after the Arab conquest of the seventh century.
Neishabur is the earliest known capital of Khorassan, and was once one of the most glorious centres of all Persia. During the Seljuq period, it became a thriving literary, artistic and academic centre. Today, Neishabur is a small provincial town and is famous for having been the hometown of the poet, astronomer and mathematician Omar Khayyam (1048 - c.1125). Among the handful of tombs in the outskirts of Neishabur, the most famous is that of Omar Khayyam. It was built in 1934 in the gardens of the imamzadeh Mohammad Mahruq.
Other famous men buried at Neishabur include the 13th century Sufi poet Attar-od-Din and the 20th century poet Kamal-ol-Molk (died in 1938).
Apart from a number of large beautiful parks and the tombs of historical celebrities in nearby Toos and Neyshabour, the tomb of Nader Shah and Kooh Sangi park and mellat park that have a modern devices for children such as 3th fanfar(charkhofalak) of the word and koohestan park e shadi that have a zoo with manifold of wild animals keep in this place and attracts more of people that come to Mashhad, are also noteworthy sights.
God Bless Mashhad!