This is a digitally restored video of Bunker Hill in Los Angeles in the 1940s. You will see several 1930s cars, a Model AA Ford US Mail truck and numerous old buildings.
In case that link doesn't work you can also find the video here.
I found a description of the route on another page.
"This is a real treasure. As most will know, I am sure, the footage starts
on Second Street above the tunnel looking East out of the back of the car.
The car then goes up the hill and turns on Grand (nice view of the Melrose
and Richelieu) going South past 3rd and 4th Streets, then down the hill to
5th Street. The next sequence traces the same route but the camera looks to
the right giving good views of all the buildings on that side of the street
including wonderful views of among other things the Angels Flight Pharmacy,
Capital Apts., Biltmore Apts., the Biltmore Theater and Hotel as well as the
Library as it was before the renovation and addition. Later the car starts
on Flower near 5th going north and finally turns on 1st Street. Too bad the
makers of LA Noire didn't have references like this to work from."