This is effectively the end of Broadway. It splits here to traverse both sides of Bowling Green for one more block and then terminates. Looked at another way, this might more accurately be considered the start of Broadway. Although the street has only one-way traffic southbound below Columbus Circle, making this its end-point if you travel it by car, in truth, given New York City history, it is likely that the street began down here and worked its way north over time. Today, Broadway runs north beyond Manhattan into the Bronx, then Yonkers and lower Westchester up to Tarrytown, where its name changes to the Albany Post Road and continues all the way to that City in upstate New York.
This image is an HDR from a 9-bracket set, taken as you might expect early on a Sunday morning. Black and white conversion done in Silver Efex Pro, with a slight touch of blue tones added.