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Dan_DC: old Chemistry Building, University of Arizona
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Dan_DC: Physics bldg., University of Arizona, Tucson
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Dan_DC: University of Arizona Physics and Space Sciences Bldg., Tucson
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Dan_DC: chip
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Dan_DC: BMW engine on display, Munich
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Dan_DC: the cockpit
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Dan_DC: U.S. Patent and Trademark Office
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Dan_DC: 55th street and Euclid Cleveland Ohio
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Dan_DC: IHS Markit, Rockville, Md.
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Dan_DC: Library of Congress data
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Dan_DC: Space shuttle flies over DC
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Dan_DC: El Segundo, Calif.
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Dan_DC: Northrop Grumman (N. Redondo Beach, Calif.)
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Dan_DC: Northrop Grumman headquarters, Falls Church, Va.
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Dan_DC: Only in Washington, D.C.
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Dan_DC: Tucson International Airport
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Dan_DC: Rosslyn 057
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Dan_DC: Cruising altitude
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Dan_DC: Lockheed Martin Aeronautics, Fort Worth, Tex.
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Dan_DC: Gould-Simpson Bldg. (background) and Biological Sciences West, foreground/left
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Dan_DC: Tucson
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Dan_DC: El Segundo, Calif.
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Dan_DC: Reference
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Dan_DC: Corporate lineup
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Dan_DC: Raytheon, Rosslyn Tower, Arlington, Va.
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Dan_DC: Boeing Corp., Arlington (Rosslyn), Va.
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Dan_DC: Marine research vessel, Tokyo waterfront
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Dan_DC: BAE Systems North America, Rosslyn, Va.
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Dan_DC: Defense Logistics Agency, Franconia, Va.
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Dan_DC: The Pentagon top view