Essex Street Trolley TerminalAuthor: Control , Date Posted: 2006-12-31 19:01:58
It's the former trolley terminal, that's what.
Yes, trolleys. NYC was once a very trolley-centric city, with many trolley lines from brooklyn coming over the williamsburg bridge and terminating here in this terminal.
While this service ended ages ago, it's still possible to see remains of the trollery terminal here, including track and provisions for overhead wires.