Hofburg Palace is a palace located in Vienna, Austria, that has housed some of the most powerful people in European and Austrian history, including the Habsburg dynasty, rulers of the Austro-Hungarian Empire. It currently serves as the official residence of the President of Austria. It was the Habsburgs' principal winter residence, as the Schönbrunn Palace was their preferred summer residence. The Hofburg (Imperial Palace) and the adjoining Augustinian Church are two of the marvels of architecture.