buildings were lifted from to . Sydney's CBD features a juxtaposition of old and new architecture. The old architecture dates back to Sydney's earliest days as a colony, down to the more grandiose Victorian architecture from the Gold rush era–the most substantial examples are the Queen Victoria Building and the Sydney Town Hall. Modern architectures take form as high-rises and skyscrapers, which are prolific among all of Sydney's city streets. The earliest skyscraper constructed in Sydney was Culwulla Chambers, which stands at a height of and was completed in 1912. Designed by Spain, Cosh and Minnett, the building consisted of 14 floors and cost £100,000 to build. Heritage conservation has been an ongoing issue for Sydney's city centre since the introduction of green bans in the 1970s and the increasing need for office or living space. Since then, a number of prominent buildings in the CBD have been lost: Anthony Hordern & Sons on George Street, the Regent Theatre also on George Street, Commercial Travelers' Club and Hotel Australia at Martin Place all attracted the ire of Sydneysiders–Sydney Mayor Clover Moore, then the MP for Bligh, even addressed a crowd in Martin Place in 1988 in a futile attempt to save the Regent Theatre from its imminent fate. Heritage listings The Sydney central business district has many heritage-listed buildings including: Pyrmont Bridge Tank Stream 45 Alfred Street: Customs House, Sydney 2-6 Barrack Street: Pinnacle House 107-109 Bathurst Street: 107-109 Bathurst Street, Sydney Between George and Pitt Street, Martin Place: Sydney Cenotaph 31 Bligh Street: New South Wales Club building 5-11 Bridge Street: Burns Philp Building 13-15 Bridge Street: Liner House 22-33 Bridge Street: Department of Lands building 35-39 Bridge Street: Department of Education building 41 Bridge Street: First Government House 6-18 Bulletin Place: Bulletin Place Warehouses 3-15 Campbell Street: Capitol Theatre 72-72a Castlereagh Street: Trust Building 302 Castlereagh Street: Downing Centre City Circle railway: Museum railway station City Circle railway: St James railway station 153-159 Clarence Street: Red Cross House 281 Clarence Street: Clarence Street Police Station College Street: St Mary's Cathedral 6-8 College Street: Australian Museum building Concourse under Western Distributor: Darling Harbour Carousel Darling Harbour goods railway: Railway Square road overbridge Eastern Suburbs railway: Martin Place railway station Elizabeth Street: Hyde Park Obelisk 60-70 Elizabeth Street: GIO building 150-152 Elizabeth Street: Australian Hall 154-158 Elizabeth Street: Metters Building 160-162 Elizabeth Street: Crown Hotel 187a Elizabeth Street: Great Synagogue