Spend the morning hot on the heels of Sherlock Holmes in London, learning about the popular Victorian detective while seeing countless filming locations and literary haunts. The 2-hour tour is led by a film-expert guide, who’ll introduce you to sites like Somerset House, the fictional Diogenes Club and more, used in adaptations like Guy Ritchie’s 2009 film ‘Sherlock Holmes,’ as well as the 1979 thriller ‘Murder by Decree.’ So, book now! As the man himself would say: ‘It’s elementary, my dear Watson.’