The Dudley Doo Right Emporium
Before the Dudley Doo Right Emporium it was the PLUSH PUP. A hot dog and burger stand.
Today the structure is still with us and is currently "Pinch's Tacos". It's sitting on prime real estate on the strip and hope it survives another 50 years!
The Doors had the first Rock n Roll billboard on the strip in 1967. Here's the band on top of the billboard. The Plush Pup can be seen down below...