[Click on all the images to get larger sizes.]
Miroslav Kalous from Prague in the Czech Republic, wrote and asked:
I’d like to thank you for the idea of “large memory spaces” which is really thrilling and I’m on the verge of building my own ones (one related to history till 1900, one for 1900+ years, one for specifically “all things Egypt” as that is a major country-project I’ve begun dealing with now).
However, I would also like to ask you one question before I begin, very practical one: unlike you (from what I understood between the lines), I don’t live at a permanent place; probably in 2 years I am going to move, then live somewhere else for other 3 years, then perhaps settling down for a longer time span at one place. As an experienced mnemonist, do you think it makes sense to start building the spaces where I live now? But what happens when I (or you) move? Re-writing all the loci spots into new palace/memory space is probably not realistic… and I am too much of a newbie to mnemonics to know if you can operate with, i.e. two complementary places. Also, I suppose, when moving somewhere else you lose the (critical?) advantage of going through the space and using them as “flashcards” prompting active recall of the stuff stored in there.
What a great question! I am so embedded in my landscape now that nothing would make me move. But as Miroslav points out, that is not practical assumption, especially for those much younger than me.
The first idea is to use public spaces which are unlikely to change. A quick check on Google images of Prague and – wow – what a stunning city! The bridges across the Vltava River, as in the image above, looked wonderful to use as a set of memory loci.
There are a huge range of other possible solutions. These are often discussed on the Art of Memory Forum under “Method of Loci” – my favourite forum on the Internet
http://mt.artofmemory.com/forums/method-of-loci
One solution which was talked about in memory treatises written in the Middle Ages was to use an imaginary memory palace. One suggested way back then was to use Noah’s Arc as described in the Bible, but maybe something a little more contemporary is required.
Some people use sets of locations from their favourite films or books. It is a matter of creating the palace and a set of locations from that film or book using your imagination to add in extra locations or details. You would then, I expect, draw that memory palace and label it and keep it forever as your reference. You could even use Tolkein’s Middle Earth.
You could create your own imaginary world much as fantasy writers do. In fact, I have created imaginary worlds before when teaching science fiction and fantasy writing and I have just decided to try this as a memory experiment because I loved doing the maps and creating the worlds.
One quite common virtual memory palace is to use one from a video game. I’ve never tried this so I have no idea how it would work but I gather they can be very effective.
Another palace people use is this school or home from childhood and re-create these locations by drawing maps, just adapting any blurry remembering with imagination.
Commonly recommended in classical Greek and Roman, mediaeval and Renaissance times was using a famous building. Gothic churches were extremely popular and even designed with this use mind. 
Chartres Cathedral, as in the three images shown, is often discussed in these terms. 
You can use any streetscape. I would imagine the National Mall in Washington, for example, would work a treat. With the White House and all the Smithsonian museums and plenty of images online, you could easily create a memory palace that could be infinitely adaptable by adding the internals of each of the buildings if you wanted to expand it. There are visitor maps online for all the buildings. See below.
This is really fun thinking about all the possibilities, but I’ve got far too excited about creating my own fantasy world to write more. Sorry! Gotta go and start drawing!
