is it an..

art gallery?
hotel??
penthouse??

no it's the hospital!

Back again for an interesting morning lazing in a blue chair for an hour under a heated blanket with a line of radiaocative trace dripping into a well found vein.
Then shunting back and forth within a big white donut for fifteen minutes.

Having spent some time working with Geiger counters way back in the 70s I think I may have 'ticked' today.!