Bob,

I think it unlikely I would ever consider entering a church any kind of endorsement of a Church, and I find it difficult to believe anyone would think so.    I echo, however, those who have already said that if you are not comfortable with it, then don't.

I'm wondering - if you were vacationing in a city with a cathedral, synagogue, mosque, buddhist temple, etc. that was noted for it's architecture, historical significance or accoustics, would you eschew touring it?