Building Virtual Reality Cities

An interesting example that reminds me of Second Life.   But of course now using headgear rather than on screen.  Is the difference in 3D quality important for this kind of experience?   " .... Imageen has launched a new virtual reality (VR) experience from Estudiofuture, Tarraco VR, now available for download on Gear VR for free. Tarraco VR allows users to travel to the 2nd Century, the ancient city of Tarraco, and view the many entertainment wonders the era offers. ... "