▼ The United States of America is a very diverse social and cultural environment. People from different ethnicities try to integrate into American society. One of the most important expressions of ethnicity is the religious places of worship. The thesis studies the case of mosques architecture in the Northeast American environment. Islam is one of the fastest growing major religions in the world. Muslim immigration started in the last thirty decades and mosques are new features in American society. According to MIT Islamic Architecture Archives, there are three different types of mosques in the United States: Imported, adapted, and innovative forms. The study examines the factors dictating the form and function of Northeast Ohio mosques. In order to get compatible and efficient information about mosques, a qualitative approach of an architectural and a development surveys is employed. It is necessary to personally explore the sites by conducting an inventory of architectural features, obtaining photographs, and interviewing people. Expectations highlight the variation between the mosques in Northeast Ohio regarding traditional reflection in form and function. The most important factors behind this variation are tradition and modernity versus traditional ideology followed by funding, law, and material. Advisors/Committee Members: Linda, Barrett.