Gotta love this news story of the 100-year-old who says his fountain of youth is doughnuts. He's eaten a doughnut every day from World's Fare for 30 years. And it earned him a birthday party.
So, how are the donuts here?
World's Fare Donuts
20800 Hesperian Blvd
Hayward, CA 94541
ETA: Found this post from 2002,