https://www.cnet.com/news/inside-a-fukushima-reactor-how-vr-gave-me-a-scary-real-experience/

Next to me are my photographer, an interpreter, a representative from Tokyo Electric Power Co. and an employee at the Naraha facility, who's serving as our guide through this virtual re-creation. We're all staring at a giant screen projected on the wall just a few feet in front of us and to our sides.

Thanks to robot surveys and loads of data, this facility has been able to piece together a fairly accurate simulation of the Fukushima reactors. Tepco and the Japan Atomic Energy Agency have worked together to build this setup. But unlike other VR experiences, the virtual trip into the facility isn't for fun. Academics, engineers and Tepco employees use these simulations to get a sense of what kinds of robots can -- and which can't -- make it through the reactors.