On the point of Heathrow nostalgia I remember when I was 10, we had been living in NY as my father had been a service rep on the Bristol Britanna with BOAC. The NY Idlewild airport was so modern especially the TWA building. In 1961, we flew back to the UK on a 707 and landed at Heathrow.
The difference was incredible as the passanger arrival was a TENT. I was too young to understand why but still remember the massive difference between Idlewild and Heathrow.