Which is NOT the place where they are talking?

W: It’ s exciting to visit the home of Charles Dickens, now the Dickens Museum, in Doughty Street, London. Dr. Sanders, can you give us a brief introduction to the great writer?
M: Yeah. The novelist Charles Dickens has been a best selling author for a very long time, in fact since his work appeared a hundred and fifty years ago. It’ s here in this house that he completed "The Pickwick Paper". It was here, too, that he wrote "Nicholas Nickleby" and "Oliver Twist". They followed on the success of "The Pickwick Papers" and established  his reputation as a leading author.
W: Dickens really was the first great popular novelist, wash’ t he?
M: Exactly. He and his publishers had discovered the very useful means of writing in monthly parts so you could buy parts of novels serially, quite cheaply. Dickens’ works were absolutely best-sellers and this continued throughout the thirty or forty years of his writing life.
W: Why is he still so popular, when so many writers go out of fashion?
M: I think in the end you put it down to nothing short of genius, that what he was doing was writing for a popular audience in his own time.