Google Analytics Map
DXing. My uncle was very big into ham radio, and he would exchange postcards with the people he contacted. I remember, as a kid, a wall map with these postcards push pinned to it from all the places around the world he had reached. There's a part of Google Analytics Maps that shows the world with dots of the places your viewers are coming from. It's like a 21st century version of my uncle's cork board wall map.