I guess I was mostly thinking about the general conception a lot of people tend to have that when they go to something like a national park (particularly in the east), that it's been completely untouched by time, when in fact we had fairly indiscriminate industry and war that giant swathes of places that were only received protections in the early 20th century and beyond.
Oh, and if we're sharing pics of big/interesting trees I would be remiss to skip the road trip where I was fortunate enough to see fat trees[1], dead trees[2], and rare trees[3].
[1] https://www.flickr.com/photos/23215983@N02/26863377690/in/da...
[2] https://www.flickr.com/photos/23215983@N02/26863377830/in/da...
[3] https://www.flickr.com/photos/23215983@N02/27069305001/in/da...