Concept drawing of the Sahara expansion, possibly the 1963 expansion of the convention center area. Color rendering by Siegfried Knop. Site Name: Sahara Hotel and Casino Address: 2535 Las Vegas Boulevard South
Artist's rendering of the Sahara Convention Center addition that was later turned into the buffet and roller coaster starting point. Stamped on back of photo: "Newell Color Lab Inc. reorder No. 5687, HO 9-7355." Color rendering by Atkins. Site Name: Sahara Hotel and Casino Address: 2535 Las Vegas Boulevard South
Artist's birds-eye view conception of the Sahara Hotel complex with the addition of the first tower. Black and white rendering by Siegfried Knop. Site Name: Sahara Hotel and Casino Address: 2535 Las Vegas Boulevard South
Aerial view of the Sahara Hotel and Casino complex in its original configuration. Site Name: Sahara Hotel and Casino Address: 2535 Las Vegas Boulevard South
Artist's conception of the proposed tower for the Thunderbird Hotel and Casino in Las Vegas. Rendered by Siegfried Knop. Site Name: Thunderbird Hotel Address: 2755 Las Vegas Boulevard South
Artist's conception of the rejected proposal for the first Circus Circus tower. Color rendering by Siegfried Knop. Site Name: Circus Circus Las Vegas Address: 2880 Las Vegas Boulevard South
Artist's color rendering of the proposed Xanadu Hotel and Casino. The Xanadu was to be located where the Excalibur Hotel and Casino currently sits, but it was never built. Site Name: Xanadu Hotel and Casino Address: 3850 Las Vegas Boulevard South, Las Vegas, NV
An artist's conception of the proposed 17-story tower addition to the Riviera Hotel. Black and white rendering by Siegfried Knop. Site Name: Riviera Hotel and Casino Address: 2901 Las Vegas Boulevard South