When I was a child, our local Underground station was Golders Green on the Edgware branch of the Northern Line. It was the first station on the stretch of the line, which remains open air, above ground, between Golders Green and Edgware. As a small child, I yearned to know what lay beyond Golders Green, where we always disembarked, but my parents did not share my yearning.
Long ago in the 1960s, the trains bound for Edgware stopped at Golders Green on a stretch of line that ran between two platforms. The doors would open on both sides of the train. The platform on the left side of the train gave easy access to the centre of Golders Green and its large bus terminus. The right side, which we always used, led to an entrance that was on the way to Hampstead Garden Suburb, where our family home was located.
One day, my father and I arrived at Golders Green after having spent some time in central London. As usual, we waited alongside a door on the right side of the train when we stopped in the station. Unusually, the doors on the right side of the train did not open, but those on the left did. By the time we realised that the right side doors were not going to open, the doors on the left side had closed, and we were beginning to travel beyond Golders Green above ground to Brent, the next station. My father was not happy, but I was delighted to be travelling along a stretch of the line that I had always wanted to see.
Since that time, I have always been excited at the prospect of travelling to the ends of the London Underground lines. Yesterday, I travelled to Watford, the terminus of one branch of the Metropolitan Line, and enjoyed it as much as I would have done when aged about ten!