To touch the soil that birthed me gives me strenth.... O New York...

1. The smell of New York City is a particular combination of exhaust, hot dogs, and urine.
2. Upon my return, I always stand in Union Square and sniff the air in rapture.
3. Union Square, a park on 14th Street, offers art and food and shopping to all and sundry.
4* St. Mark's Place, a block of East 8th Street, is home to the best shoe department on the planet.

This is how you find the subject of a sentence.
This is how you find the verb.
This is how you find the direct object.
This is what a predicate nominative is.
This is what an implied subject is.
This is the adjective scale of intensity. 
This is an appositive. 
These are prepositional phrases