With the summer vacation season now upon us, Facebook has dipped into its check-in data to figure out the locations of the world’s most social landmarks. The data covered 25 cities worldwide, and the most popular social landmarks included sports arenas, public areas, amusement parks, concert arenas, and shopping malls. People love checking into their favorite spots, whether to celebrate memories with family and friends, or make them jealous because they might be missing out on an amazing time. Some of the most popular check-ins are an obvious no-brainer — like Times Square in NYC or the Coliseum in Rome, Italy — others will totally surprise you, and places left off the list will leave you scratching your head as to why they didn’t make the cut. [Read more...]