Sydney's skyline is large and widely recognizable. Sydney also possesses a wide array of diversity of modern and old architectural style. They range from the simple Francis Greenways Georgian buildings to Jorn Utzon's Expressionist Sydney Opera House. Sydney also has a large amount of Victorian buildings, such as the Sydney Town Hall and the Queen Victoria Building. The most architecturally significant would be the Sydney Opera House, the Sydney Harbour Bridge, among many others. Skyscrapers in Sydney are also large and modern such as the Sydney Tower, which dominates the Sydney skyline.
There are also pockets of architecturally significant housing dotted around Sydney's suburbs. The inner-eastern suburb of Paddington is known for its terrace houses, while several inner-west suburbs contain streets lined with so-called federation houses (built around the time of Australian federation in 1901). Probably the best preserved example of federation houses in Sydney is in the Inner West suburb of Burwood. Appian Way is a circular street built around a lawn tennis courts complete with pavilion house. The large houses are all architecturally unique and built on large expanses of land featuring old trees and lovely gardens. Further away on the lower North Shore, Castlecrag is a unique suburb, being planned by the architect Walter Burley Griffin in the 1930s.