AR is mainly a visual technology. Although it can combine other effects such as sounds to make the experience more realistic or vibrations on the phone when we are playing a game, its main attraction is the visual content it displays over the real world. That makes this technology perfect for enhancing traveling experiences, from showing skyline information to making animals in a museum come to life or even translating signs and guides in real time.
Back in the late 2000s/early 2010s, when smartphones started to become popular, some of the first AR apps that appeared were tourism-oriented. In 2010, for example, the Museum of London released an iPhone app that showed historical photos of the city over the real places. This example has also been carried to other cities and scopes, such as in Navarra, Spain, where users can replay scenes of famous...