Shogun, James Clavell - read it when I was 9 or so, put me on the course to live and work in Japan. Has obvious faults but changed my life at an early age.
The Brother's Karamazov. Pleasantly surprised to see Dostoyevsky mentioned a few times in other comments.
The Brother's Karamazov. Pleasantly surprised to see Dostoyevsky mentioned a few times in other comments.