The British Museum and the British Library are two different institutions, which are respectively responsible for collecting and displaying cultural relics and artworks, and collecting and preserving books and documents.

The British Museum is one of the earliest comprehensive museums in the world, which was built in 1753. It collects and displays millions of cultural relics and works of art from all over the world, including the remains of ancient civilization, archaeological discoveries, natural history specimens, works of art and so on. The British Museum is a public place, open to all free of charge.

The British Library, founded in 1973, is the national library of Britain. It is one of the largest libraries in the world, with more than150,000 books and other types of literature. The collection of the British Library includes books, periodicals, newspapers, maps, manuscripts, music works and so on from Britain and other countries. It is also a place for research and study, providing various resources and services.

Although the British Museum and the British Library have similar names, they are independent institutions with different tasks and responsibilities. They are also separated in the building. The British Museum is located in museum square, England, in the center of London, while the British Library is located near St Pancras Railway Station in St Jeremias, London.