A walk through Baker Street, which has become a shrine to the world's greatest detective. Your guide will talk about Sherlock Holmes's fascinating creator, and how he had a dramatic tendency to solve real life crimes. Then a walk through the medieval village of Marylebone, which has London's highest concentration of genteel Georgian housing. See John Nash's classically designed villas and terraces around Regent's Park, The Royal Academy of Music, and the church where the world's best known publishers started in its basement.