Popularity of Facebook, along with the large number of people using various applications makes it quite easy to collect and use data. This simple set by Facebook helped determine what the most “social” landmarks/places in the world might be. Facebook used data from 25 cities and came up with these rather interesting results.
If you’re curious, the most “checked-in” place on Facebook happens to be the Unicenter (shopping center) in Buenos Aires, Argentina. Looking overall, most of the checked-in locations throughout the world are sports arenas, followed closely by public squares/gardens/avenues. Checkout the images to see the results up close.