I have an accurate and detailed (though not with savant abilities) long term memory - when I look at old photos, I usually remember the event and surroundings in fairly good detail - sometimes by forming connections between objects in the photos and other memories, such as dating a photo based on a toy or piece of clothing and then connecting it to the event, such as a Christmas, during which I got that toy or piece of clothing. I remember in great detail include my fourth birthday (the gifts and card I got, where I was when I got the presents, etc.) and the Christmas of that same year
My family moved house when I was five, yet I remember everything about the old house, such as the type of carpet/flooring in each room and where every piece of furniture was, while my parents would not remember the exact layout of the house. Looking around the area in Google Earth, I can locate where I went to kindergarten and school and the route we took to get there, where my mother brought groceries, where family friends lived (and the layout of their houses), the McDonald's restaurants we went to, etc.
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"Tongue tied and twisted, just an earth-bound misfit, I" - Pink Floyd
(and then the tower cleared me for take off)