When we think of taking an island vacation, many of us immediately think of clear blue waters, cloudless skies and warm, sandy beaches. However, not all island are created equal. In fact, some islands are just plain weird.

Check out our list of the strangest islands in the world.  Many of them are open to the public, and have historical pasts that make them truly unique.  If you're feeling adventurous, go check them out for yourself.