Apparently the streets in Manhattan are at 29^o degrees off earth’s axis. From:

From BldgBlog:

As it happens, then, Manhattan’s mathematically rational street grid is actually rotated 29º off the north-south axis – and this angle has interesting astronomical side-effects.
In other words, because of the off-center orientation of Manhattan’s street grid, you can only see the setting sun “down the middle of any crosstown street” on two specific days of the year: May 28 and July 13.

J.K. Rowling, author of the Harry Potter books, was the first person to become a billionaire by writing books.

Source: Liesl Schillinger, Wired Magazine, May 2007, page 135