• 2 College Library
• 1 Art Library (Kohler)
• 1 Verona Shelving Facility

• 11 History
• 3 Factories
• 3 Manufacturing processes
• 3 Monuments
• 3 Skyscrapers
• 3 Structural engineering
• 2 Antiquities
• 2 BMW automobiles
• 2 Building, Stone
• 2 Colosseum (Rome, Italy)
• 2 Dams
• 2 Environmental aspects
• 2 Great Pyramid (Egypt)
• 2 Hale, George Ellery, 1868-1938
• 2 Mount Wilson and Palomar Observatories
• 2 Obelisks
• 2 One World Trade Center (New York, N.Y.)
• 2 Packaging
• 2 Pyramids of Giza (Egypt)
• 2 Recycling
• 2 Reflecting telescopes
• 2 September 11 Terrorist Attacks, 2001
• 2 Sustainable architecture
• 2 Sustainable buildings

• 7 WGBH Video (Firm)
• 6 WGBH (Television station : Boston, Mass.)
• 5 PBS Distribution (Firm)
• 4 Arts and Entertainment Network
• 4 History Channel (Television network)
• 4 National Geographic Channel (Television station : Washington, D.C.)
• 4 WGBH Educational Foundation
• 3 Michael Hoff Productions
• 3 PBS Home Video
• 3 Public Broadcasting Service (U.S.)
• 3 Sanders, Jay O., 1953-
• 2 Barnes, Michael, 1948-
• 2 British Broadcasting Corporation. Television Service
• 2 Cook, Christopher
• 2 Cort, Julia
• 2 Klein, Larry
• 2 LaMarche, Maurice, 1958-
• 2 Lewman, Lance
• 2 Mason, Robin
• 2 Mason, Todd
• 2 Moore, Kevin
• 2 National Geographic Television & Film
• 2 New Video Group
• 2 WGBH (Television station : Boston, Mass.). Science Unit
• 1 A & E Home Video (Firm)

• 30 English
• 1 Multiple languages
• 1 Turkish

• 5 United States
• 4 Egypt
• 4 New York
• 4 New York (State)
• 3 China
• 3 Panama Canal (Panama)
• 2 Boston
• 2 California
• 2 Hoover Dam (Ariz. and Nev.)
• 2 Japan
• 2 Massachusetts
• 2 New York (N.Y.)
• 2 Palomar, Mount
• 1 Aswan Dam (Egypt)
• 1 Bering Strait
• 1 Chicago (Ill.)
• 1 Easter Island
• 1 England
• 1 Ghana
• 1 Golden Gate Bridge (San Francisco, Calif.)
• 1 Hong Kong
• 1 Johnstown (Cambria County)
• 1 London (England)
• 1 Netherlands
• 1 North Atlantic Ocean

• 14 Video recordings for the hearing impaired
• 13 Nonfiction television programs
• 4 Science television programs
• 4 Television programs
• 3 Films for the hearing impaired
• 3 Video recordings for people with visual disabilities
• 2 Documentary
• 2 Educational television programs
• 2 Television series
• 1 Biography
• 1 Documentary films
• 1 Educational
• 1 Films for people with visual disabilities
• 1 Television news programs

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