This was a great light installation I went to see recently with the kids.
Although when I looked through the portfolio of previous installations elsewhere that looked more intriguing, the kids loved it.
The Architects of Air is founded by Alan Parkinson who has been making them for over 25 years. The one we saw was called Pentalum.
'Each luminarium is a dazzling maze of winding paths and soaring domes where Islamic architecture, Archimedean solids and Gothic cathedrals meld into an inspiring monument to the beauty of light and colour'.
I believe there are 7, but definitely visit again.
Reminds me of Daguerre and Bouton with there experiments in what they called 'the play of light' fused with architecture like with the Rotunda and panoramas.
Will try update with links to things soon.