This paper aims to present the research project about the user experience design in web museums in Brazil based on a case study on the website "ERA virtual". It discusses the interfaces between museums and web and applications which provide immersion in 360°, so that the user can have a 3D experience. This paper conceptualizes what interfaces are, presenting a plurality of approaches and its respective authors. It defines and disseminates the ERA virtual project in its consistency, objective and activities offered by the website. It presents four theoretical study topics that will fund the completion of the "review" of the website ERA Virtual in the near future. The steps of the evaluation are: information architecture, card sorting, heuristic evaluation and usability testing.