Everytime for me.....Arriving back in London on the Eurostar at St Pancras --- or leaving for that matter. Just the brilliant St Pancras station, the light, the buzz ,the people, the walk to the tube, the sheer volume of people and possibility and different cultures. I do genuinly get a buzz from it....... until I get on the Northern Line of course!
Today was a "turn it up to 11 day" - beautiful day, start of the holidays - before the train I walked around Lille for an hour in the midmorning sun ... and then when I got off in London it was a beautiful Sunday, people either arriving in London for the holiday/business or departing. It smelt like....oh... opportunity and freedom.
I have a soft spot for the Eurostar because my wife is from Lille and I was living in London when we met, so Eurostar is a symbol of something special that I hope persists in the future....