Question: Which enterprises is this American gaming executive and real estate developer best known for, responsible for Excalibur and this hotel and casino situated on the southern end of the Las Vegas Strip?
Sentence (from "Stardust International Raceway"): Meanwhile, a replacement track, the Las Vegas Speedrome, was announced afterwards and opened in 1972, with a 1.8 mile drag strip and road course across from Nellis Air Force Base, which expanded into today's Las Vegas Motor Speedway.
Relevant evidence: No