Waterfall islands are becoming increasingly popular in design. A waterfall is simply a countertop that turns at a 90-degree angle towards the floor at the end of a countertop and precedes going to bed. A standard countertop is just finished on edge, while a waterfall is mitered on edge and sleekly transitions your countertop from the top of your cabinets to the floor. A granite or quartz countertop island can refresh your kitchen and increase the value of your home.