Randy F./YelpDurian (left) and mango gelati.A gelato craving might make you think of heading straight to North Beach this weekend, but Marco Polo Italian Ice Cream in Parkside provides authentic, homemade gelato with an array of unique flavors, minus the trek across town. The tiny, no-frills shop serves gelato made daily in its kitchen with fresh ingredients. You won't find shiny displays, cute cups, and uniformed employees, but you will have some of the best gelato available in San Franc