Belfast, the capital of Northern Ireland is just one in a number of divided cities around the world which is of interest to many authors and researchers because of its complex history that outlines the existence of today’s urban and social divisions among the inhabitants of this city. Therefore, this review article discusses with the case study of the divided city of Belfast. The key year related to Irish history was 1920. when the Irish island was divided. In 1921. Northern Ireland was created under the United Kingdom and the Free State of Ireland, which became the Republic of Ireland in 1949. Much of the tension between the two groups stems from the Northen Ireland conflict which illustrates the relations between the Republic of Ireland and the UK. In this context of opposing aspirations on opposite sides there are two groups Catholics and Protestants. Catholics want Northern Ireland to become part of the Republic of Ireland on the entire island and Protestants want to maintain the existing constitutional status of Northern Ireland as part of the UK. As a result of opposing and irreconcilable attitudes, in which both sides believe that they have an equal right to their political aspirations, physical obstacles called the Peace Walls arise. The Peace Walls were built during The Troubles period when violence was at its peak, and they were primarily conceived as temporary structures to preserve security. In addition to the Peace Walls that regulate the urban landscape of the divided city, over time wall paintings were created that serve local artists as a place of free expression and sending messages primarily to the local population in order to strengthen their own identities. The purpose of this review is about to demonstrate how the history of the Northern Irish conflict has determined the present of urban life and society, therefore concentrate on the symbolism and divisional visibility within the city of Belfast.