Maybe some people will find this thread of use. It’s going to contain a master list of places online that will make good memory palaces. Google Walkthroughs, 360s, online tours, etc.
London Taxi Knowledge (Blue Book) with all 320 runs mapped out: The Blue Book
The British Museum via Google Arts & Culture (app as well): https://www.google.com/culturalinstitute/beta/search?q=british%20museum (look for the three explores)
GTA 4 Interactive Map
The Grand Palais in France: http://www.grandpalais.fr/visite/en/the-exploration/
The London of Sherlock Holmes (many 360s including 221B)
The Temple Church London UK (use your google guy and drop on the various blue circles nearby)
The Royal College of Surgeons London UK, there are 2 walkthroughs
There are a lot of photo walks for it. Drop your Google man in and walk around. I find the following to be a good starting place: Sculptures
If you zoom in enough you will see the different sections. (See the image)
I’ll update this thread as I find new ones. And I will be adding places with walkthroughs along the Blue Book runs.