Feelin' groovy

When I was a child I liked the whimsicality of the 59th Street Bridge Song. What would it mean to have a conversation with a lamp post about flowers growing? Quite wilfully peculiar, thought young me. I had a mental picture of the lamp post on a little stone bridge like the ones in Amsterdam. The song mentions cobblestones, and I knew nothing of actual New York bridges. So it was a bit perplexing when I looked up the actual bridge recently. It's a huge piece of engineering, all girders and rivets, with nine lanes of traffic. And it's not even called the 59th Street Bridge.