Integrating technology such as augmented reality into the tourism industry has led to e-tourism and smart tourism development. In the most recent few years, there has been observed a meteoric rise in the usage of mobile devices that can swiftly retrieve information has been noticed. As a result, Mobile augmented reality applications have proven globally successful in serving different fields like historical site tourism. Despite this, tourism at historical sites in Iraq continues to suffer from different problems, including a decline in popularity as well as a lack of use of modern technologies to document, preserve, and display sites to attract visitors. This paper aims to develop an offline mobile application for exploring Iraq's most important tourism site. Based on the unity3D engine and ARcore SDK, Marker-less augmented reality application was created to display the minaret and the Great Mosque of Samara. The application functionality was tested, and it was found that it works well and has good interactivity and ease of use, and can provide new solutions for tourism of the historical sites in Iraq.