Libraries in Washington, D.C.

(de facto) national library of the United States of America

United States' official memorial to the Holocaust in Washington, D.C.

research institution concerning Byzantine and Pre-Columbian studies and garden and landscape studies

library in Washington, D.C., United States

agricultural research library serving as a national library of the United States, and the library of the U.S. Department of Agriculture

building on Pennsylvania Avenue NW, Washington, D.C., which serves as the public records depository for the United States

library room in the White House, Washington D.C.

transportation research library serving as a national library of the United States, and the library of the U.S. Department of Transportation

U.S. national library

National Historic Landmark and flagship building of Georgetown University

the religious community, a representative of the Custody of the Holy Land