Sears conglomerate during the mid-20th century, adding Dean Witter and Coldwell Banker real estate in 1981, starting Prodigy as a joint venture with IBM in 1984, and introducing the Discover credit card in 1985. In 1974, Sears completed the 110-story Sears Tower in Chicago, which became the world's tallest building, a title it took from the former World Trade Center towers in New York. Sears moved to the new Prairie Stone Business Park in Hoffman Estates, Illinois, between 1993 and 1995. The Sears Centre is a 10,001-seat multi-purpose arena located in Hoffman Estates adjacent to the Prairie Stone campus. Even though
Tower Building, Liverpool is recorded in the National Heritage List for England as a designated Grade II* listed building. Tower Building, Liverpool Tower Buildings is a former office block in the city of Liverpool, Merseyside, England. It stands with its longer front on the east side of the Strand, and extends round the corner into Water Street. The building is located directly opposite the Royal Liver Building, which was designed by the same architect. Earlier buildings on the site have been a sandstone mansion, and a later fortified house known as the Tower of Liverpool. After this was demolished in 1819, it was