Map of the Library of Congress, across the street from the United States Capitol
Original copy of Dialogo (Dialogue on the Two Chief World Systems), by Galileo Galilei (1632), in the Lessing J. Rosenwald Collection of the Rare Book and Special Collections Division at the Library of Congress
Dr. James H. Billington, Librarian of Congress since 1987
The United States Capitol
David Taylor, external relations officer at the Library of Congress, greets Rep. Lamar Smith (@LamarSmithTX21), chair of the House Committee on Science, Space, and Technology
Dr. James H. Billington, Librarian of Congress since 1987, looks at original works by Galileo Galilei and Johannes Kepler
Original copy of Harmonices Mundi (The Harmony of the World), by Johannes Kepler (1619), in the Rare Book Collection at the Library of Congress
