I hope I succeed in demonstrating that you may equally find compelling and significant narratives - stories that alter or add to our understanding of history - in unprepossessing places: a Victorian sewer system; a Cold War bunker; derelict hospitals.

I was brought up in a house where I was so aware of a life that had been broken by politics and conflict.

I don't know why, but I think the eating of food is hugely enhanced when you do it on a train. Even a simple steak and chips, when the world is rushing past outside, can take you to heaven.

What is it about trains that makes food taste so good? Some of my happiest memories are of prolonged lunches between St. Moritz and Zurich, Bordeaux and Paris, and even between Coimbra and Salamanca.

How do you focus on jobs and creating opportunities for the next generation if it's just essentially a war on public employees and others?

The social safety net was created by a united society in the aftermath of the Second World War. It came out of a British sense of fairness.

Traditionally Presidents Day was Washington's birthday. It was celebrated as a public holiday on February 22 each year, in peace or in war.

This new thing about liking yourself, I find that absolutely appalling. Anyone who likes themselves, I just can't go too close to them. To me it's pure stupidity. But having some peace with yourself, that's quite a relief.