34 floors, 850 steps up...

Today I had the pleasure to visit the top floor of the IZD Tower, with 34 floors one of the tallest office buildings in Vienna, Austria. I didn´t take the elevator, but took the 850 steps to go up, which took me around 268 seconds. Next time, when there is a staircase run up the Donauturm , I will only have to take 776 steps up, but I heard the every step there is higher...