Which one of those is the largest photo service in the planet, Flickr, Photobucket, or Facebook? To some people’s surprise, Facebook IS the de facto king of online photos with more than 140 billion pictures uploaded to the social networking service.

Just like how history repeats itself, the same situation is also happening in China. Tencent’s QZone, the social networking service curated by Tencent – btw, QZone has been long hailed as the Chinese Facebook as both is the largest of its kind in their respective home turf – is becoming the most leading photo service in China with more than 1.9 billion photos uploaded to its servers, according to the service and Beijing-based market research iResearch.

Interestingly, Tencent noted in the infographic pictured below that people even sent photos to Qzone from both poles over the past Chinese National Holiday, not so sure if the poles would be a nice choice to take some time off though.