The Library of Congress in Washington, D.C., houses the largest collection of musical instruments in the world, with over 1,800 instruments from around the world.

The Metropolitan Museum of Art Library in New York City houses the largest collection of art books in the world, with over 1.2 million volumes.

The Smithsonian Institution in Washington, D.C., houses the largest collection of jazz recordings in the world, with over 100,000 recordings.

The Library of Congress in Washington, D.C., houses the largest collection of film and television materials in the world, with over 10 million items.

The British Library in London, England, houses the largest collection of rare books and manuscripts in the world, with over 150 million items.

The International Children's Library in Munich, Germany, houses the largest collection of children's literature in the world, with over 500,000 books in over 100 languages.

The Library of Congress in Washington, D.C., houses the largest collection of sound recordings in the world, with over 3 million recordings.

The Library of Congress in Washington, D.C., houses the largest collection of maps in the world, with over 5 million maps.

The Library of Congress in Washington, D.C., houses the largest collection of photographs in the world, with over 15 million photographs.

The Library of Congress in Washington, D.C., houses the largest collection of newspapers in the world, with over 30 million newspapers.

The National Archives and Records Administration in Washington, D.C., houses the largest collection of government documents in the world, with over 10 billion documents.

The Library of Congress in Washington, D.C., houses the largest collection of legal materials in the world, with over 2 million volumes.

The National Library of Medicine in Bethesda, Maryland, houses the largest collection of medical materials in the world, with over 7 million books, journals, and other materials.

The Library of Congress in Washington, D.C., houses the largest collection of scientific materials in the world, with over 20 million books, journals, and other materials.

The Library of Congress in Washington, D.C., houses the largest collection of technical materials in the world, with over 15 million books, journals, and other materials.