Well done, Snazy.

After I read mumofthree's post I was scratching my head and couldn't think of anywhere.

Those steps at Crystal Palace are a challenge. Slightly less than those at Machu Picchu in Peru. I've done those at Crystal Palace a few times carrying my steel framed bike up and down. It certainly burns the calories and builds the legs.

As an alternative, I can recommend alighting at Penge West where the entrance to Crystal Palace is just a very short, lovely stroll around the corner. The only steps are those from Platform 2 as you arrive to cross over to the exit at Platform 1.