Founded in 1845, St Mary’s Hospital in the bustling and vibrant district of Paddington in the City of Westminster is one of London’s oldest and most illustrious medical institutions. It is one of four major trauma centres in the capital and is also one of the top teaching hospitals. It has become somewhat famous over the years for being the birthplace of many members of the royal family including Prince Harry, Prince William, and his three children. The hospital is also home to the Alexander Fleming Laboratory Museum, where Fleming discovered the antibiotic penicillin in 1928. Visitors can witness Fleming’s laboratory as it was back then, and learn about the discovery and development of penicillin through displays and video. There is also a short trail around Paddington that reveals a selection of monuments and memorials relating to Fleming.