Memory palace / Method of loci

“The Greek and Roman system of mnemonics founded on the use of mental places and signs or pictures in terms of the location of the items of interest. The method combines a familiar structure (locus) and the item or thing to be remembered (res) and is referred to as loci et res, or method of loci. The most usual method is to choose a large house in which the rooms, walls, windows, decorations, and furniture are severally associated with certain names, phrases, events, or ideas by means of symbolic pictures. To recall these items, it is necessary only to search the rooms of the house mentally until the particular place where the imagination deposited them is discovered.” [Encyclopaedia Britannica]