A very special experience is a visit to the Centre for International Light art in Unna Germany.
It's the first and only gallery in the world devoted exclusively to Light Art.
The museum is located in an old brewery and the various artists each give new meaning to the underground spaces.
The tour through the museum in small groups is escorted by a guide.
If you are lucky you have a private tour!
The idea behind the art is explained in a very nice way and there is time to ask questions and discuss your experience...if you understand the German language that is..
The artists which impressed me: Jan van Munster, Keith Sonnier, Mischa Kuball, James Turell and Olafur Eliasson.
Some installations make you aware of the fact that your perception can be different to reality.
One of my favourites surely was Christian Boltanski with his work called ' Dance of Death from the series 'Theatre d' Ombres'.