福尔摩斯博物馆通往二楼的台阶共有17级，而在剧中设置的场景中，从大厅到卧室的楼梯也是17级。
Because Sherlock fans are similarly observant , there are 17 steps leading to the first floor of the Sherlock Holmes Museum , and another 17 between the hall and front room on the Cardiff set of Sherlock . 6 .
福尔摩斯博物馆