Library of Congress Thomas Jefferson Building interiors

The Thomas Jefferson Building of the Library of Congress, completed in 1897, is renowned for its ornate Main Reading Room, marble staircases, and decorative mosaics. Photographs and short videos of the building's richly detailed interior and the Main Reading Room are commonly circulated online by visitors, publications, and educational accounts. The building's historic interiors frequently appear in widely shared posts about architecture, books, and research spaces.