environment. The main trees that dominate the landscape are walnut and pomegranate trees. Within the gardens are numerous creeks trickling along the irrigated paths, as well as traditional adobe brick homes which provide much of the housing for the Maleh district of Semnan. The Garden Restaurant – this is by far the most traditional restaurant in the city of Semnan. The Garden Restaurant offers a traditional Iranian cuisine, including local dishes, and an outdoor dining experience. The restaurant features an entrance arch decorated with stained glass mosaic windows leading into a large courtyard filled with fountains, trees, flowers, and running water. Qich Qaleh hotel museum - the hotel museum has been built by a construction worker from Qich Qaleh village in Semnan Province. The man, who has turned his own house into the anthropology museum, hosts tourists from all over the country at his local residence. Historical innovations Semnan's proximity to the Kavir Desert has provided the city with the opportunity to construct numerous facilities in order to cope with the dry climate. As a result, Semnan has numerous ancient, traditional irrigation systems known as qanat. In addition, the roofs of many buildings are decorated with windcatchers known in Persian as badgir. These badgirs were normally attached to a small cistern of drinking water known in Persian as Ab Anbar. These ancient, traditional, and clever designs and systems helped Semnan grow and prosper before the introduction of modern plumbing and appliances. Within the vicinity of the city, ancient caravanserais from the active era of the historic and legendary Silk Road can be found. Economy The city of Semnan has traditionally been an important center of commerce along the historical Silk Road, and is still an important agricultural, industrial, and cultural center today. Industrial sector The production of textiles and carpets were the most important industries in the history of the city. But nowadays, in relation to its population, Semnan has very powerful industrial sectors, with special regards to its automobile industry (cars and bikes). Another major industry is the production of cement from the nearby cement plants. The mountains and foothills around Semnan also hold major deposits of minerals used in the production of plaster; these mines are known in Persian as ma'dan e gach. Other minerals that are mined around the city consist of gypsum, salts, zeolite, bentonite, and celestine. Some heavy industries of Semnan consist of the Iran