I will spare you stomach and not actually link things BUT UH hákarl is shark. But not just any shark, it's shark that's been buried for like 6 months so it's essentially putrefied/rotten. BACK IN YE OLDEN DAYS it was also peed on to speed up the fermentation process I am not making this up.

Svið is singed sheep's head. It's cooked without the brain and but they eyes are left in and apparently they're the best part. (unsure)

OH RIGHT they also eat ram balls I'M SORRY THIS COMMENT IS SO AWFUL I CAN'T HANDLE ICELANDIC CUISINE AT ALL.