Which of these cities is known for its medieval cathedral?
Durham.
The handbook's architecture story begins in the Middle Ages with great cathedrals and churches, many still standing. Four examples are given: Durham, Lincoln, Canterbury and Salisbury. Other English cities have famous cathedrals too, but only these four appear in the text, so they are the ones a question will expect.
Why it matters: The test can offer real cathedral cities as wrong answers; only the four named ones are correct.
Memory hook: D-L-C-S: Durham, Lincoln, Canterbury, Salisbury. 'Don't Leave Cathedrals Standing' is exactly what they did not do.
Official handbook: Chapter 4, section 4.2, page 46