User eXperience (UX) evaluation is a challenging task, especially for newcomers and when evaluating domain related aspects. Usability and UX in virtual museums is one of our current research topics. We focused on identified users' needs, on developing a set of specific usability heuristics, and a methodology to asses UX in virtual museums. We conducted several experiments, mainly with graduate and undergraduate students in Tourism and Computer Science. The paper presents a UX study on Pre-Columbian Museum portal.