I am curious by nature.
I read the Bible as a child as my parents were Salvos, and again later as a teenager when I got interested in comparisons.
At High School I changed denomination each year - admittedly to whichever group stayed in the home class room - and sampled that way.
Also then, I attended the odd Mormon service with a school friend whose family were members, which worried my mother lest they convert me.
[I told her I was made of sterner stuff, and she need not worry.]
Later, I read the Qu'ran in translation, and bits of the Bhagavad Gita and translations of some Zoroastrian remnants.
I tried to read the Book of Mormon, but its clunkiness defeated me.
I also struggled to get through some Baha'i literature for the same reason.
I came across a copy of The Apochrypha years later - the content is nothing outstanding, just disputed books excluded from the Bible when it was formulated.
http://en.wikipedia.org/wiki/The_ApocryphaNone of this revealed Divine Truth to me, not even when I sat in the backyard of a Shia backyard mechanic in Melbourne and discussed the sub groups of Islam with him while he worked on my car...
I am not a believer in any religion.
I enjoyed reading Immanuel Velikovsky's attempt to reconcile all the ancient writings including Egyptian sources with the Bible and the Talmud.
http://en.wikipedia.org/wiki/Velikovsky