Long, from Edgware Road to King's Cross, in London, from which beginning the Metropolitan and Metropolitan District railways developed.
Oxford Street, with its handsome shops, bounds the borough on the south, crossing Regent Street at Oxford Circus; Edgware Road on the west; Marylebone Road crosses from east to west, .and from this Upper Baker Street gives access to Park, Wellington, and Finchley Roads; and Baker Street leads southward.
Another historic site is Horace Street near Edgware Road, formerly Cato Street, from which the conspiracy which bore that name was directed against the ministry in 1820.
The Edgware Road bounds Hampstead on the west; and the borough is intersected, parallel to this thoroughfare, by Finchley Road, and by Haverstock Hill, which, continued under the names of Rosslyn Hill, High Street, Heath Street, and North End, crosses the Heath for which Hampstead is chiefly celebrated.
The nucleus of the township lies on high ground to the east of the Edgware road, which crosses the Welsh Harp reservoir of Regent's Canal, a favourite fishing and skating resort.
The straight highway from the northwest which as Edgware Road joins Oxford Street at the Marble Arch (the north-eastern entrance to Hyde Park) is coincident with the Roman Watling Street.
The name Tyburn (q.v.) was notorious chiefly as applied to the gallows which stood near the existing junction of Edgware Road and Oxford Street (Marble Arch).
The Holyhead and Great North Roads, uniting at Barnet, enter London by branches through' Hampstead and through Highgate, between the Old North and Edgware roads.