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Holographic Virtual Tourism Meets Smart Cities

Volum at BDTS 2025 — Smart City Expo World Congress

In November, our team joined the Barcelona Deep Tech Summit (BDTS), hosted within the Smart City Expo World Congress at Fira Barcelona Gran Via. It was the perfect place to share a vision we care deeply about: cities can be experienced, understood, and co-designed together — even when people are far apart.

What we showcased

At BDTS, we demonstrated an early version of our Virtual Tourism experience: a multi-user immersive visit where people can meet holographically inside a virtual space and explore a city together. Instead of a one-way 360 video or a passive tour, participants share the same scene, interact in real time, and feel present with each other.

Meet as holograms, step into a city together, and explore it as if you were side-by-side.
  • Real-time holographic presence — users appear as volumetric representations to each other, not flat video windows
  • Shared virtual tourism — a guided or free-roam visit through points of interest, with spatial audio and natural conversation
  • Collaborative storytelling — narrative layers (history, facts, local stories) that adapt to the group
  • Designed for simple deployment — easy to set up, run, and scale

Why this matters for cities

Smart cities are not only about sensors, data, and infrastructure — they are also about people, culture, and inclusion. Immersive holographic visits can support city goals in practical ways:

  • Tourism and culture — remote visitors can discover a city before traveling, or join virtual visits when travel is not possible
  • Accessibility and inclusion — tailored for people with mobility constraints, older adults, and audiences in hospitals or remote locations
  • Education — schools and libraries can host shared visits to landmarks as part of learning activities
  • Citizen engagement — stakeholders can meet inside a digital twin and discuss urban changes together
Holographic virtual tourism demo at BDTS 2025

What we learned at BDTS

BDTS brings together startups, researchers, corporates, investors, and institutions around deep tech innovation. For us, it was a great environment to validate interest in social, multi-user XR experiences that blend presence with meaningful content.

  • People respond strongly to shared presence — the "being there together" feeling changes how users perceive a virtual visit
  • Stakeholders want practical deployments — beyond demos, there is demand for solutions that fit real venues, budgets, and operational constraints
  • City-focused use cases resonate — cultural heritage, tourism, education, and public services are clear entry points

What's next

We are continuing to evolve the Virtual Tourism experience into a flexible platform customisable for different cities and institutions — improving realism, scalability, and ease-of-use while keeping the experience social and human-centred.

If you are a city, cultural institution, or innovation partner interested in immersive visits and holographic collaboration, reach out through our contact form to schedule a demo or discuss a pilot.