Camden, inner borough (1991 pop. 170,500) of Greater London, SE England. Within the borough, residential Hampstead is popular with writers and artists. John Keats, John Constable, George Du Maurier, H. G. Wells, Kate Greenaway, and Karl Marx lived there. It is also known as a piano-making center. Highgate Cemetery in Hampstead contains the graves of George Eliot, Michael Faraday, Herbert Spencer, Christina Rossetti, and Marx. Hampstead Heath, the ancient urban park, hilly, with woodlands, meadows, and ponds, lies mainly in Camden and offers spectacular views of the city. Holborn is the site of part of Bloomsbury, another artists and writers area. Within Holborn also is the British Museum, the Univ. of London, Gray's Inn and Lincoln's Inn (see Inns of Court), law courts, the Royal College of Surgeons, and Hatton Garden, known for its trade in diamonds, gold, and silver. Benjamin Disraeli was born in Holborn, which is also the site of the Post Office Tower, one of London's tallest buildings. St. Pancras has three famous railroad stations: Euston, King's Cross, and St. Pancras.