Confidence votes 213. Gas Chromatography/Mass Spectrometry is as close to being a perfect drug test as it's possible to get. It's done in a computerized machine. It turns the sample to a gas, directs the gas into a little tube, and analyzes the way the components of that gas array themselves in the tube.
Vegas Liberty is about two-fifths the height of the original (150 feet versus 350 feet), weighs far less (150 tons versus 27,000 tons) and is way younger (about 15 years compared with 127). Photo.
Luxor Pyramid and Sphinx. Las Vegas, Nevada. The ominous black pyramid of the Luxor Casino-Hotel is the largest in America, at 36 stories tall. The only reason that the Luxor pyramid wasn't built taller than the Great Pyramid of Giza is that it stands opposite the Las Vegas International Airport. At night, a Xenon light shines straight into space from the pyramid's apex, reportedly visible from airplanes above Los Angeles 275 miles away.