My sons are 12 and 15....
All of the above listed,
Jurassic Park (an oldie but goodie),
The Gone series by Michael Grant,
Weirdly enough my oldest is reading Mein Kampf, it's an autobiography by Hitler, he wrote it starting about 8 years old and it outlines how he planned to do exactly what he did, but no one thought anything of it because of his age.
I'm glad you started this thread, I am always looking for new reading ideas for my guys.