In 2020, the global tourism industry reached a minimum due to the closure of all international borders due to COVID-19. According to MINCETUR, Peru only registered the arrival of 0.9 million tourists and an income of foreign currency with a reduction of 80.48% compared to the previous year. That is why this research proposes to use Information and Communication Technology (ICT) and develop a system based on mixed reality (MR) for the tourist promotion of the Municipal Palace of Lima, using elements of virtual reality (VR) and augmented reality. (AR) accessible through a mobile application in order to create an immersive, entertainment and learning experience for users. As a result of the research, a functional mobile application was implemented that was tested by 73 people, of which 50% did it using a PC, 25% did it using a laptop, and the rest did it using their mobile phone. On the other hand, 75% of the respondents indicated that it was easy to interact with the tool and finally, 100% of the respondents responded that they learned something new from the Municipal Palace of Lima thanks to this tour.