Well, I didn't actually complete the greatest (and most dangerous) mountainous experience the world has to offer in the picturesque Asian Himalayan range. I simply faithfully took the stairs instead of the elevator to work. Three stories. Every day. For two years.
A little math and a few google searches helped me discover by accomplishment.
52 stairs a day.
4 days a week.
17 inches per stair.
48ish weeks per year.
Plus two months.
Divided by 63,360 to get miles.
And Great Everest is only 5.499053 miles.
I'll say that's a pretty grand accomplishment. If you think your work is meaningless. Or your stuck in an in-between job. Or you are feeling particularly fat and sassy...
Take the stairs. Climb Everest. Rejoice!