Zero-Zero. State & Madison. Looking North.
Thanks to Daniel Burnham, Chicago is a grid city, which means that one could hypothetically be dropped anywhere within the city limits (just imagine the little person you can drop anywhere on Google Maps) and they would be able to figure out where they are because of the numbers. This took me some time to figure out, but after seventeen months I have it down. Zero-Zero also happens to be the halfway point of my morning commute two days a week.
And no, that is not the bus I need to transfer to.