The Library of Congress, established in 1800, is the largest library in the world, with millions of books, recordings, photographs, maps, and manuscripts in its collections. This iconic institution is as much a research haven as it is an architectural masterpiece, featuring ornate decorations and intricate frescoes.

Best Time/Season to Visit:

The Library is open year-round, but visiting outside of peak tourist seasons, like late fall or early winter, can offer a more tranquil experience.