"It tastes like chewing on a urine-infested mattress," said Samuel West, who, as curator of the Disgusting Food Museum, knows a thing or two about unpleasant victuals.
"It's a fermented sort of rotten Icelandic shark," he says. "Anthony Bourdain, the late TV personality, called it the single most disgusting thing he'd ever eaten, and I totally agree with him."
Some visitors have a hard time of it.
"Has anyone thrown up here at the museum? Yes twice," West said. But, "it's okay to vomit because our entry tickets are not really tickets -- they're printed on vomit bags."
European fare ranges from Iceland's cured shark, Hakarl, to Sardinia's Casu Marzu cheese, which is riddled with insect larvae. There is Scottish haggis, made from sheep innards, and Sweden's smelly Surstromming fermented herring.
North America is represented by sweet treats: Jell-O salad and root beer.
"Things like Vegemite which we find really normal at home, like we'd eat that every day for breakfast, are next to things like the shark that I couldn't imagine tasting and I think it is revolting so it's quite funny for us."