You're looking at the world's largest menorah...I think.
According to that sign and several internet articles, this menorah, set up in Grand Army Plaza at the south-east corner of Central Park, is the world's largest.
There are other sites out there stating that the menorah set up near the entrance to Prospect Park (also, confusingly, named 'Grand Army Plaza') in Brooklyn is the world's largest.
Who to believe??
Both menorahs are said to be 32-feet tall. Let's call it a tie.
Those lanterns at the top enclose real-deal oil lamps, which are lit each night with the aid of a cherry-picker (orange, pictured in the background).
That's one large menorah.