Madame Charpentier's boarding house was in Torquay Terrace. (A Study in Scarlet)

 

The Hatmaker's, John Underwood and Sons is located here. Enoch J Drebber bought a hat from here which was later found next to his body. (A Study in Scarlet)

 

Home of Mrs Cecil Forrester and her governess, Miss Mary Morstan. (The Sign of Four) 

 

City located in the northeast of Ohio, on the southern shore of Lake Erie. (A Study in Scarlet)

 

Enoch J Drebber and Joseph Stangerson were thought to have been travelling around Europe prior to staying at Charpentier's Boarding House. Madame Charpentier noticed a label on their trucks for Copenhagen, the capital of Denmark. (A Study in Scarlet)

 

A resturant and bar next door to the Criterion Theatre, it stands on the side of Piccadilly Circus. Watson met young Stamford here before going to lunch at Holborn and discussing finding some new accommodation (A Study in Scarlet).