There was a White Castle in Lansing a few years ago. As much as I like those puny lil thangs, I never went to that one.
When I lived in Port Huron there were a couple of Powers burger joints that were essentially the same thing as White Castle. So similar, I later wondered if the Powers’ stores used to be White Castles.
WC has a somewhat unique way of cooking sliders. The patties are perforated and cook by steaming them atop onions. I’ve had the frozen and I thought they were good enough. I’ll buy them, still, if they’re on sale.