It focuses on describing and analyzing the ways language, religion, economy, government and other cultural phenomena vary or remain constant, from one place to another and on explaining how humans function spatially.

The street trees have really four jobs to do and that's it To spatially denote the pedestrian realm, to protect the pedestrians from the vehicles in the carriageway, to filter the sunlight onto the sidewalk, and to soften the hardscape of the buildings and to create a ceiling a vaulted ceiling over the street, at its best.