Every day, millions of people check in on Foursquare. We took a year's worth of check-ins in New York City and Tokyo and plotted ... What’s a luxury guy like Manfredi Lefebvre d’Ovidio doing ...

But while becoming immersed in the ambience of the historic bookstores in Tokyo’s famous Jimbocho ... said the bookstores are just like the books they house: They cannot be judged by their ...