Originally House of the Governor-General of Taiwan during the Japanese era, it was used as a venue for welcoming domestic and foreign guests. When it was first built, it was designed in a neo-renaissance style with an emphasis on harmony, but later changed to a more luxurious baroque style. The main building is a wooden corridor that connects the Western Hall (the welcome hall) and the Japanese Hall (the Governor-General of Taiwan's living space), and the modern Japanese curtilage garden on the north side is also a national monument.