shows, trade fairs, and in 1870 a bullfight. In 1884 the prefix "Royal" was added because of the number of visits by Queen Victoria and members of the Royal Family. In 1943, after the nearby Mount Pleasant sorting office was bombed, the building was requisitioned for use during World War II and never re-opened to the public. It continued as a sorting office until 1971, then lay empty and deteriorating until eventually the main hall was redeveloped as the Business Design Centre in the 1980s. The remainder of the building was demolished and the main entrance moved from Liverpool Road to the Upper Street side. The Royal Agricultural Hall features as the location for a Victorian walking match in Peter Lovesey's 1970 novel Wobble to Death, and its BBC Radio's Saturday Night Theatre adaptation. Liverpool Road is unusual in being one of the few streets in London to have a "high pavement". This was constructed in the 1860s to protect pedestrians from being splashed by the large numbers of animals using the road to reach the then-new Agricultural Hall. As a consequence, the pavement is approximately above the road surface for some lengths of the street. London Fever Hospital Old Royal Free Place and Old Royal Free Square were originally the London Fever Hospital, and then from 1948 an annexe to the Royal Free Hospital. The London Fever Hospital moved to Kettle Field on Liverpool Road in 1848 from its earlier premises at King's Cross when the site was needed as part of the site for the Great Northern Railway terminus at King's Cross Station. Despite much local opposition, Liverpool Road was believed to be a much better position for a fever hospital because it was on the top of a gravel ridge, high and well drained, and thought likely to be free of the miasma, or bad air, held to cause disease. The architect for the new hospital was Charles Fowler, who received the commission due to the influence of the Earl of Devon. The circumstances caused some controversy: a competition had been held to choose a design, and one by David Mocatta had been formally decided upon by the committee, but it was set aside and Fowler was brought in to carry out the work. Fowler designed the red-brick, colonnaded façade in Palladian style, with two wings. The front façade consisted of the front elevation with three blocks