<P> Over the 18th and 19th centuries, the palatial buildings were slowly adapted for other uses and demolished . Only the Wakefield and St Thomas's Towers survived . The 18th century marked an increasing interest in England's medieval past . One of the effects was the emergence of Gothic Revival architecture . In the Tower's architecture, this was manifest when the New Horse Armoury was built in 1825 against the south face of the White Tower . It featured elements of Gothic Revival architecture such as battlements . Other buildings were remodelled to match the style and the Waterloo Barracks were described as "castellated Gothic of the 15th century". Between 1845 and 1885 institutions such as the Mint which had inhabited the castle for centuries moved to other sites; many of the post-medieval structures left vacant were demolished . In 1855, the War Office took over responsibility for manufacture and storage of weapons from the Ordnance Office, which was gradually phased out of the castle . At the same time, there was greater interest in the history of the Tower of London . </P> <P> Public interest was partly fuelled by contemporary writers, of whom the work of William Harrison Ainsworth was particularly influential . In The Tower of London: A Historical Romance he created a vivid image of underground torture chambers and devices for extracting confessions that stuck in the public imagination . Harrison also played another role in the Tower's history, as he suggested that Beauchamp Tower should be opened to the public so they could see the inscriptions of 16th - and 17th - century prisoners . Working on the suggestion, Anthony Salvin refurbished the tower and led a further programme for a comprehensive restoration at the behest of Prince Albert . Salvin was succeeded in the work by John Taylor . When a feature did not meet his expectations of medieval architecture Taylor would ruthlessly remove it; as a result, several important buildings within the castle were pulled down and in some cases post-medieval internal decoration removed . </P> <P> Although only one bomb fell on the Tower of London in the First World War (it landed harmlessly in the moat), the Second World War left a greater mark . On 23 September 1940, during the Blitz, high - explosive bombs damaged the castle, destroying several buildings and narrowly missing the White Tower . After the war, the damage was repaired and the Tower of London was reopened to the public . </P> <P> In 1974, there was a bomb explosion in the Mortar Room in the White Tower, leaving one person dead and 35 injured . No one claimed responsibility for the blast, but the police investigated suspicions that the IRA was behind it . </P>

When did the tower of london stop being used