Canyon of Heroes

I just came back from New York City, and while walking around the Financial District, I learned all about ticker-tape parades. This could be easily done because engraved black granite strips have  been placed along the parade-path with informational tidbits. On thee downside, this causes one to walk face-down, making the readers somewhat of a pedestrian hazard. It turns out that the path taken (from Bowling Green to City Hall), due to its narrow streets and tall buildings, is called the Canyon of Heroes. Such poetry.