What it is about the garbage can?

Day was just prefect for today's assignment.  We went through so many gorgeous flowers, we scrolled through the park, swallowed the fresh air.  After heroic climb to the top of Primrose Hill, suddenly  all of my attention was drawing to the garbage can.  Is it used just for trash as is an original purpose or something more, for example; I saw the athletes were using it to warming-up before or after running up-and-down of the hill, and on the Abbey road it just in the middle of everyone attention.

The day was fun & really nice weather; I made home without rain. 

The Garbage can & Work-out.

The garbage can on the historical site of the Abbey Road.

and the prefect rose with just a touch from yesterday rain ---- the Regent's Park.