So he REALLY did say it!!!
Oh, I'm a bit surprised that someone non-Finn knows the case. Maybe I must take back this common joke (in Finland) because it is not completely true :)
Well, I think he really said that but what is the church or in which country it is, that is unclear.
The Finns would like to think it was Petäjävesi Old Church but it clearly was not. Either it was a wooden church in some other country, most likely in Iceland, or it was a wooden church in Seurasaari
(an Open-Air Museum in Helsinki) which he visited in 1971.
So much talk about stupid man's stupid sayings...