When I was [much] younger, on a summer tour of Europe, three or four friends and I climbed the Eiffel Tower using the stairs.
Whew!
Ah, youth! We were better then than we ever were.
Not counting the stairs run (either two steps at a time or three if I had irritated the coach) run for "conditioning" on the wrestling team, I've only done a few of the "biggies" - and none of the ones pictured.
These days I am a proponent of the "if G*d had meant for us to climb stairs He would never have invented elevators" crowd. Bad knees, bad back, and bad heart all look fondly at any staircase, no matter how short, and want to reach out and strangle the person who thought it would be a good idea to put them there.
On the other hand, all of those bring to mind the saying that "like a slinky, some folks are just meant to be pushed down stairs".
(I have a list. Alphabetical. By height and weight. In chronological order from oldest to youngest. But I am willing to make an exception and enter a name out of order.)
stay safe.
