Next tour: No dates yet.
Meet: Midland Hotel steps, Peter Street.

Here’s something you didn’t know. During the Second World War the Government requisitioned a well-known building to be the secret regional HQ, to take over the running of not just Manchester but the entire North-West should Nazi invasion look imminent.

It was kitted out with the most sophisticated communications equipment, food and beds. Winston Churchill, prime minister, even kipped there one night to show how safe it was. But of course it was never needed. Where is it? Ah…