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Las Vegas Pyramid
Photo: Light technician on a Las Vegas pyramid
WALLPAPER
A technician handles one of 39 volatile 7,000-watt xenon lamps atop the Luxor pyramid on the Las Vegas Strip. Touted as the world's brightest light, Sky Beam is strong enough to read a book by—10 miles (16 kilometers) out in space.
Photograph by Joe McNally

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