One of the checkers at our local grocery store escaped from North Korea 8yrs ago, when he was 19. He'd never heard of ice-cream; had no idea what it was until he got to France, the first stop on his journey to the US.
But he said the real shocker was when he got to the US and discovered that ice-cream comes in dozens of flavors. He said he made it a goal to taste every single flavor of ice-cream in America, but just when he thought he'd finally done it, he found a new one.