Cucamelons grow on vines and look like grape-sized watermelons,… Cucamelons grow on vines and look like grape-sized watermelons, but they taste like cucumbers with a hint of sourness.Source: Unbelievable Facts Interesting Facts Related posts:Cucamelons grow on vines and look like grape-sized… There is a naturally occurring black rose. They grow in only… Watermelons – WTF fun fact Village in Japan that is filled with life sized dolls – WTF fun…