"All roads would lead to the king"

[Joel S. Berson]

I cannot make sense of "all roads" in the following statement:

"At the town's center was to be a 'spacious Square, with an
Equestrian Statue of his present Majesty in the Center of it.'  The
streets were 'all built in straight lines, crossing one another at
right angles.'  In this town, all roads would lead to the king."

Is it not the case that in such a rectangular grid, only two roads
would lead to the king, not "all"?  Am I misunderstanding English or
plane (Euclidean) geometry?

Joel

------------------------------------------------------------
The American Dialect Society - http://www.americandialect.org