Gigantic and sumptuous, the Hofburg Palace, embellished and extended by former sovereigns, is emblematic of the era when the Austrian house ruled from Castile to the West Indies. During the 20C, the Habsburg's former residence evolved into a gigantic, sprawling museum. The story is not over and in 2019 a "House of History" will be opening. Fans of Sissi, art lovers and those looking for intimacy: there is something for everyone.