Here is a link to site that contains over 99 different poems about cities.
Here is my favorite poem off the website so far, entitled Music of the Street by Jennifer Lujanac.
Music Of The Street
Nothing here is innocent.
Nothing here is really pure.
There's danger around each corner.
Nothing here is stopping, nothing here is slow.
There's never a moment of silence,
There's never a moment alone.
The city has a beat,
It pounds into your brain.
There's a rhythm to this city, a shuffle that's contagious.
This city's made of music!
It'll stick in your head and never leave.
It's a fantasy.
It grows on you and makes you want to stay.
You become a part of the music of the street.
It almost sounds like an ad pitch from Don Draper from the TV series Mad Men. What is your favorite poem about cities?