On this page
- What is a memory palace?
- Why does the method of loci work?
- How to build a memory palace step by step
- Memory palace example: the first eight US presidents
- What can you store in a memory palace?
- Which memory techniques work best with a palace?
- How to review a memory palace so it lasts
- Why does my memory palace not work?
- Frequently asked questions
What is a memory palace?
A memory palace is a real place you can picture clearly, such as your home or your walk to school, that you use to store information. You pick a fixed route through it, choose a series of stops along that route, and place one striking mental image at each stop. To recall the material, you walk the route in your head and look at what you left there.
The place does the organising. You never have to ask "what comes next?" because the next stop on the route answers that for you.
Mind palace, method of loci and memory palace: is there a difference?
No. They are three names for the same technique. Method of loci is the classical term (loci is Latin for places) and the one used in research papers. Memory palace is the common modern name. Mind palace is the version popularised by the BBC series Sherlock. You will also see it called the journey method or the Roman room.
The idea is old. Roman writers including Cicero credit it to the Greek poet Simonides of Ceos, who, according to the story, identified the victims of a collapsed banquet hall by remembering where each guest had been sitting. Orators then used the same trick to deliver long speeches without notes.
Why does the method of loci work?
It swaps a job your memory is bad at for one it is good at. Most people struggle to hold an arbitrary list of words, but can describe the layout of their home without effort. The technique attaches the hard material to that easy, already stored map.
Three things are happening at once:
- Spatial memory carries the order. Navigation and memory for events rely on overlapping brain systems centred on the hippocampus, and a familiar route is recalled almost automatically.
- Images are stickier than words. Turning a term into a picture gives you two ways back to it, the word and the image. That is the idea behind dual coding theory.
- Every stop is a retrieval cue. You are not recalling from nothing. Each location prompts exactly one item, which is why you rarely skip one without noticing.
The research matches the experience. A brain imaging study of top competitors from the World Memory Championships found no unusual brain structure or general intelligence advantage. What set them apart was strategy: nearly all of them used the method of loci (Maguire and colleagues, 2003). A later study trained ordinary adults in the technique for six weeks. Their word list recall rose sharply, and much of the gain was still there four months later (Dresler and colleagues, 2017).
How to build a memory palace step by step
You need a place, a route and some imagination. The first palace takes about twenty minutes to set up, and most of that is choosing the stops.
Pick a place and fix a route
Choose somewhere you know well and number the stops along one path that never changes.
Place one vivid image per stop
Turn each item into a strange, moving picture that interacts with the stop itself.
Walk it back from memory
Close your notes, walk the route in your head and repair any stop that comes up empty.
Choose a place and a fixed route
Start with your home. Stand at the front door in your mind and move through it in one direction, for example clockwise through each room. Choose 10 stops for a first attempt: front door, shoe rack, coat hook, hallway mirror, sofa, television, kitchen table, sink, fridge, bedroom door.
Good stops are distinct from each other, spaced apart and always in the same order. Avoid four identical chairs in a row. Walk the empty route two or three times before you put anything in it, until you can name every stop forwards and backwards.
Turn each fact into a vivid image
Abstract words do not stick, so convert each item into something you can see. Use a sound-alike or a concrete symbol. Then exaggerate it: make it huge, moving, noisy, funny or slightly disgusting. Ordinary images are forgotten, absurd ones are not.
The image must do something to the location. A washing machine standing next to the front door is weak. A washing machine blocking the doorway and flooding the mat with foam is strong, because recalling the door now drags the image along with it.
Walk the route and recall
Put your list away and walk the route from the first stop. Say or write each item as you reach it. Where a stop is blank, the image was too tame or was not attached to the location, so rebuild that one image and walk again. Two clean walks in a row means the palace is loaded.
Memory palace example: the first eight US presidents
Here is the memory palace technique applied to a real list, using eight of the stops above. The images use sound-alikes, which is the usual way to handle names.
| Stop | Image you place there | What it recalls |
|---|---|---|
| Front door | A washing machine jams the doorway and floods the mat with foam | Washington |
| Shoe rack | Every shoe is stuffed with shiny red apples (Adam's apple) | John Adams |
| Coat hook | A chef in a coat hangs from the hook, shouting orders at his son | Jefferson |
| Hallway mirror | Your reflection is furious, a mad son glaring back at you | Madison |
| Sofa | Marilyn Monroe is asleep across all the cushions | Monroe |
| Television | The apples again, this time rolling out of the screen holding a quill | John Quincy Adams |
| Kitchen table | A giant car jack lifts the table off the floor | Jackson |
| Sink | A delivery van is parked in the sink, its engine burning | Van Buren |
Read the table once while picturing each scene for a few seconds. Then look away and walk from the door to the sink. See whether you get all eight, then try saying them backwards, which is very hard to do with a list learned by rote repetition.
What can you store in a memory palace?
Anything that is a set of separate items, especially when order matters.
| Works well | Poor fit |
|---|---|
| Ordered lists: steps of a process, stages of a cycle, historical sequences | Understanding why something happens |
| The main points of a speech, presentation or essay plan | Solving new problems in maths or physics |
| Names, dates, numbers and formulas once you have an image code for them | Large amounts of vocabulary you need at speaking speed |
| Anatomy lists, classifications, legal elements, case names | Material you will read once and never need again |
When is the palace memory technique the wrong tool?
When the hard part is understanding, not remembering. The palace stores labels. It will hold the eight stages of a pathway in order, but it will not tell you what any stage does. Learn the meaning first, then use the palace for the parts that are arbitrary.
It is also slow for small jobs. Building images takes effort, so for five loosely related facts a few flashcards are quicker.
Use it for the skeleton. A reliable pattern for exams is to store the outline of a topic in a palace (the headings, in order) and learn the detail under each heading with normal recall practice.
Which memory techniques work best with a palace?
A palace handles encoding: getting material in, with structure. It does not replace the techniques that keep material in. These pair well with it:
- Chunking. Group long material into units before you place it, so one stop holds one chunk instead of one digit or one word.
- Peg systems. A fixed set of images for numbers lets you place dates and figures as pictures.
- Retrieval practice. Testing yourself is what makes a memory durable. Walking the palace from memory is a form of it, and so is answering questions on the same material.
- Spaced review. Coming back at growing intervals, just as the memory starts to fade, is far more effective than repeating everything in one sitting.
If you want to know why a list that felt solid on Monday is gone by Thursday, the post on why you forget things so quickly covers the forgetting curve in detail.
How to review a memory palace so it lasts
Vivid images slow forgetting, they do not stop it. Without review, a palace built tonight will have gaps within days. A simple schedule that works: rewalk it later the same day, the next day, a few days after that, then weekly until the exam.
Each walk takes a minute or two and needs no materials, so it fits a bus ride or a queue. Always recall first and check your notes afterwards. Looking at the list before walking only tells you that you can read.
Turn each stop into a flashcard
A second layer of testing catches what the walk hides. On a walk you always arrive in order, so you never practise jumping straight to one item. Cards fix that: write the stop on the front and the fact on the back, for example "Hallway mirror" and "Madison, fourth president".
On Eduloo you can start an empty deck on the flashcards page and type the front and back of each card by hand. In a study session you can type your own answer before the card flips, then rate it Again, Hard, Good or Easy. Cards you miss come back within minutes and cards you know move out by a day or two, so the weak stops get the extra walks.
Make a deck for your palaceOne card per stop, typed by handWhy does my memory palace not work?
Almost every failure comes down to one of these five causes, and each has a quick fix.
| What goes wrong | How to fix it |
|---|---|
| The image is sensible and forgettable | Make it bigger, louder, moving or ridiculous |
| The image sits near the stop without touching it | Make it break, block, fill or climb the object at that stop |
| Two or three items are crammed into one stop | One item per stop, or combine them into a single scene on purpose |
| The route changes each time you walk it | Fix the order once and number the stops |
| Old images from a previous list keep showing up | Use a different place for each topic you want to keep |
Building is not the same as knowing. A freshly built palace feels complete because you have just looked at every item. Only a walk with your notes closed, ideally the next day, tells you what is really stored.
Ready to keep your palace from fading?
- Start an empty deck and add one card per stop
- Type your answer before you flip the card
- Rate each card so the weak stops come back first
Frequently asked questions
Yes, for the right material. Studies of memory competitors found that nearly all of them rely on the method of loci, and ordinary adults trained in it for six weeks recalled far more words than before, with gains lasting months. It is strongest for ordered lists and weakest for building understanding.
A first palace with ten stops takes about twenty minutes: a few minutes to fix the route and one or two minutes per image. It gets faster with practice, because you reuse the same sound-alike tricks and stop hesitating over how silly an image is allowed to be.
You can reuse a palace for throwaway lists, such as shopping or a single presentation, because the old images fade once you stop reviewing them. For material you need to keep, such as exam content, give each topic its own place. Otherwise old and new images compete at the same stop.
As many as you have distinct stops. A flat gives you twenty to fifty with little effort, and a route through a school or a neighbourhood gives you hundreds. There is no practical upper limit, because you can always add another familiar place. The real constraint is the time needed to review them.
Often, yes. The technique leans on knowing where things are more than on seeing them sharply. If your mental images are faint, describe each scene in words, add sound, movement and touch, and focus on the fact that an item is at a location. Try it with ten items and judge by the result.