Take a look at this great 1966 view of the Dome that Gs Jansen posted yesterday on Vintage Los Angeles. A click on it will take you to the full size view on Facebook.
Quite a contrast to the feel of this section of Sunset today with everything built up around the Dome. Here it looks like it has just landed from space on a vacant tract of desert.
Lots more on the theatre resides on our Cinerama Dome page.