The Dimensions of the faith is a free online course from Gordon Conwell Theological Seminary, this course which is very in depth contains lectures and goes from early church history, to mission. It also contains a Bible study component based on the book How to read the bible for all its worth which is a very good if intense look at translations and other theological concepts.

Each section has a quiz at the end of it for those wishing to earn a certificate but it is not a must, each section also has a forum for discussions and participation with others completing the online course. Really worth doing very in depth.

https://my.gordonconwell.edu/page.aspx?pid=1007

For those perhaps looking at what some Seminary type study may entail or just expand their Christian knowledge its worth a look and its free.