Ongoing project for XRSites.
This is a 3D hotel that was first used with JanusVR (now JanusWeb) and was created for VRSites.
In this case it is being used to display some of the user created Mozilla hubs! Currently at 44 examples but more will be added in due course.
You can create your own Mozilla hub at https://hubs.mozilla.com/
More info: https://xrsites.com