Imagine being able to experience a place that no longer exists. Close to my hometown there was a dam made that completely changed the landscape. But a museum re

Imagine being able to experience a place that no longer exists. Close to my hometown there was a dam made that completely changed the landscape. But a museum reconstructed as best as they could the area so one can still see it as it was in VR and walk around. That's one use. There are many others, such as simulation of human behaviour in a digital twin (you can make sure experiment variables remain the same, difficult to do in the real world), collaboration and ease of access to archeological sites around the world, aiding architectural work, etc...