I just completed reading Angels and Demons by Dan Brown. This excellent fictional book recounts a story about the Illuminati and the conflicts between science and religion. The text focuses on the Catholic Church and I learned a lot about Catholic traditions through reading the text - though I have to do some research to separate fact from fiction.
The text is of the same genre as The Da Vinci Code and is an equally enjoyable and informative read.
I am now interested in reading Digital Fortress, also by Dan Brown, but may take a break and head back to Eric Larson to read Isaac's Storm (I loved Thunderstruck and Devil in the White City).