Design and development of a PWA (progressive web application) by the Audioguiarte team. The app is available in six languages (Spanish, Catalan, English, French, German and Italian), and features audio and multimedia content for a self-guided tour on the Mirador Torre Glòries, one of the most iconic structures along Barcelona’s city skyline. Audioguiarte also handled content production, implementation of the system for data collection and analysis, and project coordination.