Two continents
Being in Berlin the night the Wall really crumbled. One year later, in Ostrava, being welcomed to sit in a Mig 21 and chat with some throroughly demoralised aircrew (who hadn't flown for months). They were also interested in selling any personal kit we fancied.......
Being shown around Pnomh Penh by a garrulous and contented guide, who turned out to have been General (President) Ne Win's Chief of Staff.
Tempus fugit.