Dive into the fascinating world of memory athletes who can memorize thousands of digits or entire decks of cards in minutes using the method of loci, better known as memory palaces. We examine the historical development of this technique from ancient Roman and Greek orators to modern memory championships, supported by current neuroscience research showing how spatial memory can enhance information retention. Through interviews with memory champions and cognitive scientists, we explore how these techniques physically alter the brain's structure and function. The episode culminates in a practical guide for listeners to build their own memory palaces, backed by recent studies on the technique's effectiveness in both educational and professional settings.