I'm walking here
Check out this amazing archive of historic New York pictures
OldNYC.org is an amazing look into the New York of days past. They've taken the historical photos from the New York Public Library database and mapped them out based on where they were taken.
Here's a sample. This is from a parade celebrating the National Recovery Administration going by that selfsame library in September 1933:
And that's just one among thousands. Check it out.