Insular, villagey Hampstead has long been popular with the literati and chattering classes. Pope and Gay took the waters here during its brief time as a spa; Wilkie Collins, Thackeray and Dickens drank at Jack Straw's Castle on North End Way; and Keats strolled on the Heath with Coleridge and Wordsworth. Much of Keats's best work was composed in his house in Wentworth Place; it was in its garden that he heard his nightingale. Happily, Hampstead's hilly geography has prevented the sort of urbanisation that Camden has suffered, and it remains, together with Highgate, a haven for much of London's (monied) intelligentsia and literary bigwigs. It's entirely appropriate that Hampstead's MP is ex-actress Glenda Jackson.
Hampstead tube stands at the top of the steep High Street, lined with opulent but unexciting shops and bars. Running north, and further uphill, from here is Heath Street. Don't miss the dark and inviting Louis Pâtisserie (no.32) for tea and fabulously sticky mittel-European cakes. Just off the southern end of Heath Street is Church Row, one of Hampstead's most beautiful streets, with twin lines of higgeldy-piggeldy terraces leading down to St John at Hampstead, where painter John Constable and his wife lie at rest in the sylvan graveyard. Close by, on Holly Hill, is Hampstead's nicest pub, the Hollybush; while another minute's climb brings you to Fenton House on Hampstead Grove, with its fine porcelain and paintings. The celestially inclined might like to gaze skyward at the nearby Hampstead Scientific Society Observatory (Lower Terrace; 8346 1056). On Hampstead's southern fringes is the house where Sigmund Freud lived the last year of his life, having fled Nazi persecution in Vienna in 1938 (now the Freud Museum; ). Nearby is Camden Arts Centre, with its eclectic programme of exhibitions.

East of Heath Street is a maze of attractive streets that shelters Burgh House on New End Square (a Queen Anne house that now houses a small museum) and 2 Willow Road, a modernist house built by Hungarian-born Ernö Goldfinger for himself in the 1930s. Nearby, off Keats Grove, is Keats' House. Around the corner, on South Hill Park, Ruth Ellis shot her former boyfriend outside the Magdala pub in 1955 (look for the bullet holes in the wall), and became the last woman to be hanged in Britain.

from timeout.com (see links)

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otherwise timeout is excellent for the wider view of London and what is going on.