Mashhad is a city in the north-eastern part of Iran and it is considered to be the most important religious-tourism destination in the country, as well as the second-largest religious city in the world. The city is located in midst of neighboring cities such as Sarakhs, Drogas, Chenaran, and Neyshabur. Having a border with Afghanistan and Turkmenistan has given a special military significance to the city. The climate is mostly cold and dry, with hot summers. The winters are also cold and humid.