Foucault's Pendulum
The Name of the Rose or Foucault's Pendulum
Edit: Fixed.8-)
There is a Neil Gaiman book that I read about half a year ago called Anansi Boys, and I couldn't put it down. That is nearly a literal truth.
I was really into Rand in high school.
In my opinion, Ayn Rand is a less competent novelist than Dan Brown...
Seriously. Everyone knows the better bumper sticker is "Who is John Galt?"