There are many understandings of "VR" in our field.

The ATLAS outreach "Virtual Worlds" team provides an Occulus Rift description of the ATLAS cavern, detector, events, control room + the CERN globe, with a virtual exhibit on sub-detectors and a virtual cinema. This app requires wifi, a laptop equiped with a good graphics card and the VR kit, but is compatible with most VR systems. Details, contacts and photos can be found on the ATLASrift web site [now broken, as migration to CERN's drupal 8 infrastructure is pending ]

The CERN Visit Service uses instead two 360 degrees films, loaded on a set of Occulus-GO: one on LHC experiments (using CMS images), one on data flowing from detectors to the grid. A third, on "people at work", is in preparation. Those films are not publicly released.

The third option, which is public and lightweight, is to use (on a screen, smartphone or Occulus-GO) the web based LHC panorama developed in partnership with our CMS colleague Tom Mc Cauley. If there is no wifi during your event, html pages can be downloaded on your laptop. 

Last but not least, the Visit Service web site provides links to all LHC experiments google street views . 

ATLAS Virtual Worlds conference talks  & papers :

• ATLASrift: a Virtual Reality application - DPF15 poster and proceedings, ACAT 2017 slides
• Virtual Reality and game engines, and example from the ATLAS experiment: CHEP 2018 slides and proceedings