This is frustratingly difficult to understand from the site because they never include a human in the photos for scale (though the text says it's 3m in diameter). This video is a bit better
https://www.youtube.com/watch?v=BvL0T5xyG5E ... it shows a cutaway in a scale model that makes it clearer where people stand, pictures of people painting the exterior and video of the globe in motion. I can't find any of what it looks like inside while in motion, which would have been nice. I guess I'll just have to go visit!