The secrets of the Stonehenge, the prehistoric monument that represents one of the wonders of the world, have never been completely unlocked. This is perhaps a "wonder" of history, ancient or modern, that makes the subject ceaselessly fascinating; with a "final" answer always remaining elusive, we can continue with a seemingly unending search for new knowledge. There have been continuous attempts at solving the mystery at Stonehenge, and new findings and theories on the prehistoric monument have emerged.