A place that needed a little explaining. We walked in and were told to remove our shoes or put little disposable booties over them. The floor had words on it - beautiful, crazy, dull, magnificent - and there were several pillars of water.
The guide came out after a few minutes of us wandering around asking what the hell was happening and explained that each of the pillars contained water from every glacier in Iceland, even one that is no longer in existence. The words on the floor described the people and the landscape of Iceland.