Contemporary art that seeks to investigate the geopolitical situation in today’s world has long been working on visible and invisible borders they separate people, societies and cultures. Production on the topic of reification of transnational boundaries through physical (such as walls) or natural barriers (such as the sea) is the volume of work produced is now very large, and because of the heterogeneity of forms in which express his views. Because of the seriousness of the consequences of their management on persons who they try to pass through them and because of the scale of the speeches that were initially local. then, potentially universal, two areas are emblematic cases: the boundary between Mexico and the United States and the Mediterranean basin. Contemporary art also focuses on these areas, with contributions that they often resonate with those of other disciplines (anthropology, border studies). Doing reference is made to some of the works carried out there over the last 20 years. they will identify a number of occasions in the speeches promoted (denunciation of situations contingencies, criticism of colonialism forging current discrimination, similarities that connect humans beyond their cultural variability), leading to identify the final common denominator of this work in the desire to put in discussion and breaking down not only walls but also borders, seen as waste of colonial modes of relationship between humans are no longer acceptable.