Sydney's central business district (CBD) is the commercial centre of Australia. Big business, chic retailers, museums, theatres, and parks coexist in and among clusters of skyscrapers and historic buildings. Underground walkways connect major shopping venues allowing you to move easily between retail stores. There are numerous galleries and museums to visit, ... More> such as the Australian Museum, the Mint, the Powerhouse Museum or the Art Gallery of NSW. You will marvel at the 360 degree views over the city from Sydney Tower, and the majestic St. Mary's Cathedral or at the water’s edge at Mrs Macquarie's Chair.