I remember being shocked at how small the B-17 was in person - I'd always thought of it as a huge airplane after watching movies like "12-O'clock High"
I had a crawl through Kermit Weekes' B-17 at Polk City and remember remarking to an American chap "what a hell of a small space to go to war in". I also had a look inside his B-25 when it was being restored at Chino, memory says it seemed more spacious!