I visited Bodnant, where there are some truly HUGE trees (yes, I know, not nearly as large as those in the US ;-))
Some are labelled champion trees of Great Britain, i.e. the tallest, or widest. One such was an insignificant thing you wouldn't give a second glance to, surrounded by all the splendour. A Sorbus from China.
When a teenager I wouldn't get out of the car when taken to Bodnant. It seemed like a lifetime before anyone reappeared, a lesson well learned.