Some places, like Manhattan, have numbered streets that intersect with numbered avenues as their city grid. Avenues run north-south, while streets are east-west.
That's fairly common in a lot of US cities, although the orientation may be reversed. My house sits on the corner of two equally sized transit routes. One is a 'street', while the other is an 'avenue'. ( Fun fact - the 'street' is still an actual brick-paved road.) Incidentally, my town utilizes the same avenue/street orientation Dave mentions.
A number of years ago, as part of a "modernization and standardization effort", my home county went through and renamed all country and rural roads as part of some national GIS/GPS mapping system. As a result, my childhood address of 'Route 1 Box 5 ' suddenly officially became 2***
Boulevard X.
Boulevard. For a single lane, unpaved gravel road you can't access when you get more than a 1/2" of rain.
However, that was only the east-west routes. North-south county roads were simply designed "roads".
For a further sense of ridiculousness: The population of the entire county is only 2, 692 people. 1,814 of them live in the biggest town, another 380 in the second largest city, and 28 in the third and final "city". Yes, it's officially a city of 28 people - note a similar inconsistency between the usage of 'town' and 'city' compared to relative size.
That leaves only 470 people living in a rural area of 730 square miles, but by god some of them reside on boulevards (albeit mostly unpaved).