He's taken a photo of himself and his son every year for 26 consecutive years. Yep, from 1986 to 2012, this proud papa captured his son getting older as well as himself aging. Imgur user Davko posted the images as proof. And though it's unclear if Davko is one of the men in the photos (they're watermarked by a Chinese publication called Chefu), it doesn't make them any less bittersweet.
Check 'em out.