What makes Schönbrunn Palace historically important?
Schönbrunn Palace served as the principal summer residence of the Habsburg dynasty from the mid-18th century until the fall of the empire in 1918. Empress Maria Theresa transformed the palace into its current rococo form during the 1740s-1750s, and it was here that the six-year-old Mozart performed for her in 1762. With 1,441 rooms spread across a complex rivaling Versailles, plus 1.2 kilometers of formal gardens, a palm house, the world's oldest zoo (Tiergarten, founded 1752), and the Gloriette hilltop pavilion, Schönbrunn is Vienna's most-visited attraction. Combined with Hofburg Palace and Belvedere Palace, it completes the trio of imperial residences that define the city.