Abstract
Stucco art in Islamic period, in terms of technique and decorative motifs, pattern is taken from decorative art of Sassanids period. Motifs of stuccoes Sassanids period with inspiration from nature, does communicate (communication doesn’t exactly, but close to it), and can be easily identified similar samples it. This shows that unrealistic patterns less used in these motifs, and artist has shown less tendency to this direction. But these elements under the influence Islamic wisdom, have changed their form and meaning. One of the important findings and indicator in Aveh site were decorations stucc, that during the excavation in Imamzadeh Fazl Ibn Soleyman, obtained in the third chapter excavations this historic site in 2009. According to the date mentioned on one of the luster tiles found from this building (684  A.H.), this decoration is belongs to Ilkhanids period. The authors seeking to prove such dating, have done shape and technique used in this motifs and compare them to other historic sites stucco decorations from Ilkhanids period. This research has done to study this question related with Imamzadeh Fazl Ibn Soleyman building that, basically, this building based on stucco decorations, related with which period? And, stuccoes related to which style? In this regard, the present study seeks to prove these assumptions in execution of decoration motifs of stuccoes this building, has been used two styles stucco decorations with high bulge and decoration motifs caved. The decoration motifs are contains foliate, geometric, and inscribed. These motifs and their styles have been modeled from Ilkhanids styles. The method of doing this research is descriptive – analytical – comparative. Data in this study are taken from Library resources and field work. Field works in this study are contains extensive excavations in Aveh plain and in Imamzadeh Fazl Ibn Soleyman. Furthermore, cultural material obtained from excavation, have been drawn.
Keywords: Ilkhanids, Stucco decorations, Decorative motifs, Imamzadeh Fazl Ibn Soleyman of Aveh.

Introduction
The decoration of buildings Islamic period of Iran, usually have been used from brick, plaster, and tile. From of stucco, from early Islamic period to Timurids period as there has been template element in the decoration, and it has been most used in prayer niches and inscriptions of buildings (Pope, 1987: 166). Stucco at first has been more used for cover the rugged surfaces and decorate them; but, in the fifth century  A.H., stucco has been transformed from a simple decorative mode to unique coating of decorative. Traditionally, stucco art has been among of decorative art dependent on architectural of Iran, that after from flourishing in the Sassanid period in middle centuries of Islamic and in Ilkhanids period has reached the peak of flourishing.  In fact, Ilkhanid period is golden age of stucco in Islamic period Iran. This art in Ilkhanid period in vast areas as a decorative element in architecture of this period has used. From this period are remained traces very beautiful and unique. 24 km from Saveh County to Salafchegan is separate road to Qom; this is road of Jafarabad – Qom. The village of Aveh is located about a 6 km from this road. (Hashemi, 2007: 125). Imamzadeh Fazl Ibn Soleyman in Aveh plain, based on obtained indications from field works of authors (discover the luster tile in this building with date 684  A.H.), is one of the architecture monuments in Ilkhanid period with decorations of tile-making and stucco. Stucco decorations this building, although a small number is obtained, but they are represents the pinnacle of stucco art Ilkhanid in middle centuries of Islamic. The main purpose of authors in this study, in first place, have been presented available sample from stucco art Ilkhanids from Aveh area; In second place, have been analysis of their decorative motifs (technique), and type of motifs used (foliate, geometric, and inscription), and comparison them with other similar samples in other historical places.

Stuccoes of Imamzadeh Fazl Ibn Soleyman Aveh
After reviews on these stuccoes, their technique was studied in two groups: stucco decorations with high bulge, and decoration motifs caved. Techniques of shaping stucco decorations are with high bulge to form of in situ, mold, or combined from both techniques. In technique decoration motifs caved, has used from both techniques in situ, and mold. Furthermore, decoration motifs of stuccoes this building has been studied in tree group foliate, geometric, and inscribed. The foliate motifs of stuccoes is to form of arabesque and cinquefoil motifs (high and stretched), and Rosette flower. The most of foliate samples obtained in decorations of stuccoes Imamzadeh Fazl Ibn Soleyman Aveh, are from of type of foliate motifs six and eight of fimbria, flowers and leaves (several of fimbria) with buds, and arabesque motifs.The geometric motifs used in stuccoes of Imamzadeh Fazl Ibn Soleyman building are most to form of the honeycomb motifs. 
In stuccoes of Imamzadeh Fazl Ibn Soleyman building has been seen inscribed. Unfortunately, inscriptions used in decorations this building, aren’t in good position for recognize the type of script and decorative style. Authors have been results based on speculation and also based on lines used in decoration of tiles luster painted this building (that from of types of Sols and Naskh script).

Conclusion
As was mentioned, decorative motifs of stuccoes in Imamzadeh Fazl Ibn Soleyman building are divided to foliate, geometric, and inscribed, and they have been created to two styles: stucco decorations with high bulge, and decoration motifs caved. With comparison decorative motifs this building with decorations other traces in Ilkhanids period Iran, could be seen significantly specifications of decorative style of Ilkhanids in this building. So, decoration motifs Imamzadeh Fazl Ibn Soleyman building are related to Ilkhanids period. Therefore, date mentioned on the tiles this building and decoration motifs of stuccoes have been contemporaneous. On the other hand, comparison of shaping stuccoes Imamzadeh Fazl Ibn Soleyman with contemporaneous buildings, power of architects Islamic in Ilkhanids period is show.

Abstract
The monuments of Qajar and early Pahlavi periods in the valley of Darreh-Shahr of Ilam province are among the works that reflect the political and social developments of this era. The purpose of this study is to investigate the adaptive study of the spatial and temporal structure of Ghala Poursharf, Mirgholam Hashemi and Ghaleh Jahangirabad, the causes of their formation and pattern of distribution. The research method in this study was experimental research, field and library studies. In this regard, by studying the architectural elements each of the buildings, the Appellation of them according to their spatial-physical structure is to be re-evaluated. The results of the research are show that the construction of the studied buildings in the city of Darreh-Shahr, according based on military and security necessity and then on political and social grounds. The results of the research are show that the construction of the studied buildings in the city of Darreh-Shahr, have been according based on military and security necessity and then on political and social grounds. These buildings are located at the most appropriate geographical locations and related to agricultural affairs and tax affairs. On the other hand, according to architectural and archaeological studies, other buildings of Pourashraf fortress, has been built on the basis of military and security necessity, and the buildings of Mirgholam Hashemi and Jahangirabad have been manor house and where built at the beginning of the Pahlavi period for political and social reasons. So, in this study, these questions are raised: What is the pattern of distribution of these buildings in Darreh-Shahr? How are the spatial structure of these buildings? Can be used the title of fortress for these buildings?
Keywords: Darreh – Shahr, Late Qajar and Early Pahlavi, Fortresses, Comparative Study.

Introduction
From the location, the fortresses of Iran have been made in different ways in relation to the natural situation of the place and materials. So that, construction of fortresses in the Pre-Islamic Era and the Islamic period of Iran had a close connection with the political, economic and geographical necessities. For this reason, they have made the fortresses in the harsh mountains and beside the water and springs, around the cities and overlooking them. They have made these fortresses for their role in various political developments, such as the rise and fall of governments, the internal crises and used in the onslaught of foreign nations as a refuge for political opponents. Also build these fortresses have been important in the formation of cities. The shape, type, and number of Iranian fortresses towers in the Islamic period have been depend on the social, natural and military conditions of each region. The Iranian fortresses have a long, wide and long wall, cylindrical and multifaceted towers, one or more gates for entry and exit, and sometimes entrenchment on around fortresses. The type of relations governing the life of the fortresses was almost the same. These relations, along with the natural and geographical factors of the region, played a decisive role in function of the various parts of the fortresses, and they all brought together in a special type of architecture. In general, fortresses had several functions that including: for holding detainees, state treasury holdings and the status of government. With this introduction, the monuments from the Late Qajar and Early Pahlavi periods in the city of Darreh-Shahr called “fortress” have been selected for study. The main purpose of this research is to first introduce, describe and analyze the spatial structure of the buildings of Pourashraf, Mirgholam, and Jahangirabad, and then analyze their structure and location. The main purpose of this research is to first introduce, describe and analyze the spatial structure of the buildings of Pourashraf, Mirgholam, and Jahangirabad, and then analyze their structure and location.

Finding Research
The archaeological excavation in the Ziyat area is considered to be a collection of rescue researches of the ancient sites of the basin of the Kurih dam. In order to, this study has done identify and understand the status of the remains architecture and the ancient layers this site. Ziqi enclosure is one of the sites that was quickly destroyed by the first stages of dewatering in the dam buried lake, due to its location and texture; therefore, the implementation of ancient archaeological research on this site before the dam drainage of Amiri, It was essential and important to carry out these researches a valuable step in the process of recognizing and introducing this ancient work before its complete destruction. The Ziqi area has always been part of it due to its proximity to the Guria Monument. The first mention Piran in 1380 was identified during the first chapter of the Ancient Cognitive Examination of the Ivan County of Guria, which Zich was also part of it (Pirani, 2001: 159-183). In 2004, Ibrahim Moradi introduced the Ziqi site in an archaeological study of the Kyrgyz Dam basin independently of the “Guria” building (Moradi, 2004: 40-53). 

Conclusion
The archaeological excavation of the archaeological site of Zich has done in three parts distinct but related sections, including systematic survey, speculation to determine the area and extensive exploration of the site was accomplished. The results of these studies have ultimately led to the recognition of the temporary deployment area (seasonal settlement). The study of the architectural and architectural remnants of the spaces in the excavated workshops and their comparative comparisons with contemporary samples in the region has showed that the Ziqi area was a temporary deployment site (seasonal deployment) and a one-stage deployment that during a period (to Seasonal but for several years) has been used by the Cubans. Establishment in tents that surrounding it with single or double-edged stone and one or two row strips separated from each other, have been outside the tent space (outside the tent) cooking utensils and other day-to-day activities. The nomads have been set up stairs and set up tents on their slopes and have been facilitates their settlement. The healthy and complete example of such settlements that are related to the life of contemporary localities is to the present day and in the same style, and their works are clearly visible around the site.