What if The Commissioners' Plan of 1811, which put in place the grid system in Manhattan, was adopted by the entire world? ExtendNY has the answer, having now brought the grid to every inch of the planet, extending out from New York City. So by the time you hit Los Angeles you're at 20,000 Street and 14,000 Avenue 39th Street, while closer to home in Jersey City, you'd be at 39th Street and 28th Avenue.

The grid turned 200 years old this year, and here's what Manhattan would look like without it. [via Kottke]