London, one of the most cosmopolitan capitals in the world, offers a wealth of museums where you can spend entire days discovering treasures of history, art, and science. Best of all, many of them are completely free! These cultural institutions not only amaze with their collections but also allow you to delve into the fascinating stories behind the exhibits. Here is an overview of the most popular free museums in London, along with descriptions of their highlights, addresses, and links to official websites.