The virtusphere is designed to let you experience a place by walking through it in virtual reality. It is a sphere big enough to stand up inside of – like a giant hamster sphere – along with a virtual reality headset. As you walk in the sphere, you move through the virtual environment. Reuters gives you a tour of the Virtusphere here:

“Virtusphere” walking tour

See also:

The alternative approach is the 0mni-directional treadmill:

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