The early 2000s marked a golden era for many American restaurant chains that are now considered restaurant chains going downhill. These are the restaurant chains that have experienced the steepest decline since their early-2000s heyday. After operating roughly 300 restaurants at the start of 2023, the chain reportedly shrank to just 16 locations by late 2024. While its ice cream still inspires nostalgia, the restaurant chain itself has become far less common. While many of these brands still have loyal fans, their stories illustrate just how quickly even the most recognizable restaurant chains can lose their place at the top.