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| The lady in the picture said the third floor stairs are a part of her daily exercise. |
Only in a place like New York does this make sense to the real estate owners.
Source:
http://www.nytimes.com/2013/12/01/realestate/walk-ups-are-in-demand-and-come-with-bragging-rights.html?smid=tw-nytimes&_r=0

