Madame Tussauds took a series of short leases on the upper floor of "Baker Street Bazaar" (on the west side of Baker Street, Dorset Street, and King Street), which later featured in the Druce-Portland case sequence of trials of 1898–1907. This became Tussaud's first permanent home in 1836. By 1835, Marie had settled down in Baker Street, London and opened a museum. One of the main attractions of her museum was the Chamber of Horrors. The name is often credited to a contributor to "Punch" in 1845, but Marie appears to have originated it herself, using it in advertising as early as
221B Baker Street Street" was a suite of rooms on the first floor of a lodging house above a flight of 17 steps. The main study overlooked Baker Street, and Holmes' bedroom was adjacent to this room at the rear of the house, with Dr. Watson's bedroom being on the floor above, overlooking a rear yard that had a plane tree in it. The street number 221B was assigned to the Sherlock Holmes Museum on 27 March 1990 (replacing the logical address 239 Baker Street) when the Leader of Westminster City Council, Lady Shirley Porter, unveiled a blue plaque signifying the address of