The emojis of other places remind me of postcards, this long-forgotten way of keeping in touch with your friends. Travellers tended to send them from farther countries, I think they still do. Like, «look where I've been, I am an intrepid traveller.» Actually, the icons don't identify any particular spots. They're just images of an abstract city, which fits any description.
Apart from the city sceneries, here are a lot of tourists attractions, which can be found in most large cities.