In which city and country is Sydney located?

Australia.

Sydney (Sydney, translated as "Sydney" in Taiwan and overseas Chinese inhabited areas), Australia's largest city and the capital of New South Wales, Australia's economic, financial, shipping and tourism center, a world-famous international Metropolis.

Sydney is located on the southeastern coast of Australia. It is the first colonial settlement established by Europe in Australia. It was established in Sydney Bay in 1788 by Arthur Phillip, captain of the British First Fleet. It first housed exiled criminals and later With the massive influx of immigrants during the Australian Gold Rush, Sydney gradually became the most important city in the Southern Hemisphere. The city of Sydney is built around Port Jackson (including Sydney Port) and has become a world-famous seaport city since the 20th century.