Digital Heritage and Digital Humanities focus on distinct typologies of heritage: tangible and intangible Cultural Heritage (CH) objects and their preservation, education, and research versus the application of digital technologies to support research in the humanities. Both allow scholars to go beyond textual sources to integrate digital tools into the humanistic study. This project aims at supporting a new way of experiencing CH in the Serralves Museum and Coa Archeologic Park through more involving and culturally-qualified user experience. The main goal is to understand the potential of eXtended Reality within CH while also proposing the idea of developing a digital experience platform: an authoring tool based on an engine with core experiences functions that can be applied for developing multiple experiences for CH. This platform will contribute to new approaches, technologies, and tools for creating, processing, and delivering immersive and interactive content for engaging and meaningful experiences in these specific CH environments.

As mobile technology sustains exponential growth and spread to all aspects of our everyday life and smartphone computational power increases, new promises arise for cultural institutions and citizens to use these tools for promoting cultural heritage. This survey proposes to review available smartphone applications (apps) relating to cultural heritage in three different contexts: cities, street art, and museums. Apps were identified by searching two app stores: Apple's App Store and Google Play (Android). A data search was undertaken using keywords and phrases relating to cities, street art, and museums. A total of 101 apps were identified (Google Play only= 7, Apple App Store only = 26, both Google Play and Apple App Store = 61, Apple Web Store and Web App = 6). Apps were categorized into the following categories: museums (39), street art (30), and cities (32). The most popular features are photos (96%) and maps (79%), and the most uncommon the 360 (4% – only in museums apps), games (6%), and video (15%).

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The incorporation of different types of media promotes a multimodal approach to the dissemination, communication and exploitation of Cultural Heritage in Museums. By utilizing digital technologies allows new forms of interactions with cultural content. Cultural spaces such as museums have been integrating new digital tools, presenting their audiences immersive, interactive, and multisensory experience that is not possible in traditional exhibitions. Withing these approaches a new term of Extended Reality (XR) is emerging and increasing its role in these cultural spaces. XR is the umbrella that englobes all forms of immersion and interaction such as Augmented Reality (AR), Mixed Reality (MR) and Virtual Reality (VR). This article aims to provide a comprehensive state of the art of XR experiences for Cultural Heritage in Museums. To support this goal, a systematic review of the peer-reviewed articles was gathered from the Scopus and Web of Science databases. Results are analyzed and the case studies are presented in this paper.