The just-released Riverbelle is one of well over 100 new apple varieties to hit markets around the world in the past six years. Courtesy of Honeybear Brands hide caption

itoggle caption Courtesy of Honeybear Brands

The Cotton Candy grape looks and smells like a regular green grape. But the taste will evoke memories of the circus. Courtesy of Spencer Gray hide caption

itoggle caption Courtesy of Spencer Gray

Notice how some of these tomatoes have unripe-looking tops? Those "green shoulders" are actually the keys to flavor. pocius/Flickr.com hide caption

itoggle caption pocius/Flickr.com