Urban areas could be small towns or large cities - anywhere there is a density of people and human made structures such as residential housing,  commercial buildings, industrial buildings, roads, bridges, railroads, man-made lakes, and parks.

Words such as "exciting", "diverse", "sophisticated", "formal", "architectural", "edgy", "crowded", "blighted" are often associated with urban settings.

Try photographing the urban landscape in the warm soft glow of dawn and dusk ("Golden Hour"), or the bright harsher "Midday Light" that creates high contrast, sharp shadows and bright colors, or with "Night Light" combining artificial and natural light for dramatic, "noir" effects; the options for creating interesting photographs are endless. Have fun!