The Museum of the Order of St. John is located in London, England, and focuses on the history of the Knights Hospitaller, a medieval order founded to care for sick and injured pilgrims. The museum showcases artifacts, documents, and exhibits that illustrate the order's role in the Crusades and its evolution over the centuries. Visitors can explore various displays, including medieval armor, religious relics, and artworks related to the order. The museum also highlights the modern-day St. John Ambulance, which continues the order's legacy of providing medical care and support to communities.