Why not

Treat the British Museum as your corridor through Bloomsbury? Walk from the back entrance in Montague Place to Great Russell Street (or vice versa) and give yourself a brief encounter with the sublime. Take in a wonder or two in the Oriental Room; then pass through the oriental corridor (empty at present) to the Kings Library. See there the first printed music manuscript (1473) or a mortgage deed dated 1613, signed William Shakespe, or scribblings on a play (unperformed) on which he is thought to have worked. Then, into the Manuscript Saloon and choose between the Brontes, Dickens, Austen, George Eliot and Woolf, before emerging between the magnificent columns. It's the best passageway in London.