Flex Time. What's the longest (single) book you've ever read?

[kittyray]

For me, it's Gödel, Escher, Bach. Non-fiction, very interesting read.
The original English version is ~206,000 words. I read the Hebrew version but I believe it's probably around the same count.

Edit:
After reading @(you need an account to see links) comment I checked and it looks like HP5 has more words, so I guess this is the longest I've ever read. But it's weird?? I guess since GEB is non-fiction, it felt harder while reading it, unlike the easy-to-read HP.

How did you like it? I bought Gödel, Escher, and Bach like 5-10 years ago, but I never got around to reading it. I don't think it's even on my shelf anymore, I think it's in a box that never got unpacked after college.