Many Bible students today see the Garden of Eden in Genesis as a prototype temple or sanctuary. Greg Beale identifies fourteen reasons for this identification (The Temple and the Church’s Mission: A Biblical Theology of the Dwelling Place of God, New Studies in Biblical Theology [Downers Grove: InterVarsity Press, 2004]). John Walton also holds a similar position. But as Andrew Perriman points out in this post, this kind of identification is open to question. I have personally gone back-and-forth on the issue and remain agnostic.