Union Street runs for , is wide and originally contained the principal shops and most of the public buildings, all granite. Part of the street crosses the Denburn ravine (utilised for the line of the
Great North of Scotland Railway) by Union Bridge, a fine granite arch of span, with portions of the older town still fringing the gorge, below the level of
Union Street. The latter was built between 1801 and 1805, and named after the
Acts of Union 1800 with
Ireland. Amongst the notable buildings in the street are the Town and County Bank, the
Music Hall, the Trinity Hall of the incorporated trades (originating between 1398 and 1527), now a shopping mall; the Palace Hotel; the former office of the Northern Assurance Company, and the
National Bank of Scotland. In Castle Street, a continuation eastwards of
Union Street, is the new
Town House, the headquarters of the city council. Designed by Peddie and Kinnear and built between 1868 and 1874, it is one of the most splendid granite edifices in Scotland, in Flemish-Gothic style in recognition of close trade links between Aberdeen and Flanders, it contains the great hall, with an open timber ceiling and oak-panelled walls; the Sheriff Court House; the
Town and County Hall, with portraits of
Prince Albert, the 4th
Earl of Aberdeen, various
Lord Provosts and other distinguished citizens. In the vestibule of the entrance corridor stands a suit of black armour, believed to have been worn by Provost Sir Robert Davidson, who fought in the
Battle of Harlaw in 1411. On the south-western corner is the 210 ft (64 m) West Tower, with its prominent bartizans, which commands a fine view of the city and surrounding country. On the corner of Castle Street and King Street stands the old North of Scotland Bank by Aberdeen born architect,
Archibald Simpson. This building, with its imposing corner entrance of four giant order composite columns, and statue of Ceres above, is now a pub named after its original architect. On the opposite side of the street is the fine building of the Union Bank, redeveloped in 2005 as the High Court, the third permanent high court to sit in Scotland. ==Castlegate==