Artsteps allows you to create your virtual exhibition. Although the vitual space is quite limited, however, it is free of charge. You may install photos / pictures, videos, and even 3D models into your exhibition room. You can create virtual tour by your own and publish it to the public.
Sample of Artsteps VR Exhibition – Lego Virtual Exhibition by Universe Wang
Demonstration of Visiting My Lego Virtual Exhibition
This video demonstrates how to visit the virtual exhibition efficiently.