Follow trainee taxi drivers as they undergo one of the most difficult memory tests, The Knowledge.
Jonathan Miller demonstrates how, by observing the mad crowded together in large asylums, ''experts'' concluded the causes of madness were to be foun...
This episode looks at how the human brain relies on other brains to thrive and survive.
This film looks at the tough training regime undertaken by black cab drivers as they prepare for one of the hardest examinations they will ever take.
Cookies help us run our services and give you a better experience. For the full details please read our Cookie Policy.
