Lesser-known Greek islands to add to your radar

From the hedonistic parties on the beaches of Mykonos to Santorini's awe-inspiring villages dangling on the cliffs of a volcanic caldera, the Greek isles are a bucket list travel destination for a reason. But as tempting as it may be to stick to the hot spots, there are plenty of under-the-radar islands that are just as spectacular as their flashy siblings. If dramatic moonscapes or crystalline beaches sounds about right, discover a slew of places where time runs slower and simplicity is key to a happy life.