Sweden: went as part of a bus tour. Was very nice, impressed by all the marble (not that common in Scandinavia)
Denmark: very nice tour with friends.
Germany: huge, impressive. Very clean, modern. Kingdom Hall, nice architecture. Remember a small signboard giving the weekly times on visits from dentist, psychiatrist and doctor.
France. (Old one at Boulogne-Billancourt): Friendly, but somewhat untidy and outdated.
Great Britain: A bit old-fashioned
Italy: nice, friendly staff - were allowed to tour it in bermuda shorts and t-short
Greece: very nice, got wine and fish for lunch when I came unsuspectedly. The brothers played volleyball in the garden.
Kenya. a bit old, was toured by Mark Noumair in jeans. Remember some African brothers had their family living in compounds close by.
USA: huge, impressive, but rather old-fashioned by European standards.
Austria: once in the 80s and then later on after re-decoration. Remember the ugly curtains from the reception on the first visit being re-used as draping something in a closet that was opened when I was there. Funny
Netherlands: nice, modern, were invited for coffee to some of the workers.
Barbados: small, like a family home. Very nice brother showing us around. Warning us gently when he heard we were going to Jolly Roger (an excursion with a lot of booze - we did not indulge in the drinking though).
Norway: nice Bethal in quiet surroundings.
And all had the same system when it came to washing...