Kooh Sangi is one of the recreation centers and one of the old and popular parks of Mashhad that is located inside this city. There are two low rocky hills in this park, which are the reason of naming this park as Kooh Sangi. Above these hills, there is a great view of Mashhad, Holy Shrine of Imam Reza (AS) and Mashhad gardens. After Mellat Park, Kooh Sangi is the second largest park in Mashhad. In addition, it is one of the most beautiful parks of Iran. Until 1932, Kooh Sangi was considered a tourist destination and a countryside with natural attractions including easy trekking mountains, prosperous gardens, rivers, natural sceneries and mild climate. Then, by creating some facilities including pools and flowing aqueduct, it became widespread and important and in 1940, it became a natural park by curbing the streets, fencing and floriculture. In 1962, as Mashhad developed, Kooh Sangi was connected to the main body of Mashhad via a wide and treed street known as Kooh Sangi. The development plans considered for Kooh Sangi include the cultural garden, dining garden, recreational garden, stone garden, natural garden, the mausoleum garden as well as sports garden that have made Kooh Sangi a recreation and tourism complex. In addition, the building of the Great Museum of Khorasan, which is constructed by modeling the architecture of Kalat Naderi Palace, has doubled Kooh Sangi's attractions.