What is the most famous pyramid scheme company?

Have you ever heard of a pyramid scheme company that has gained immense notoriety? I'm curious, what is the most famous pyramid scheme company that has captured the attention of both regulators and the public alike? It's fascinating to delve into the workings of such organizations and understand how they manage to entice people with promises of quick wealth, only to ultimately collapse under the weight of their own fraudulent practices. Can you shed some light on this intriguing topic?