Month or two ago I went to Spain and this happened to me in one of the cathedrals. The feeling was awesome!
Pipe Organs are the best... This is awesome! Wish i could play it ;)
I had the very same feeling at Wien not long ago ... the acoustic is so perfect you get goose bumps : ) Just imagine that you are listening to that several centuries behind in such extraordinary building ... it would be easy to convince you that God exists, isn't it?