Schönbrunn is the former summer residence of the Habsburg Royal family. It's an immense palace with rooms decorated in Rococo style set on large grounds. Parts of this palace are open to the public. Unfortunately, due to the large groups of visiting tourists (6.7 million visitors a year!), it was virtually impossible to get a good look at the rooms and furniture that were once home to Empress Elizabeth of the 'Sissi'-movies, let alone get a taste on what it must have been like to live here!
A stroll in the large, formal garden toward the hill at the back end was much more pleasant. Plus the garden is so big that it can accommodate large quantities of tourists before becoming crowded.
Tickets range from € 7 - € 14, depending on which tour you take. Buy your tickets upon arrival and keep an eye on the numbers when yours comes up.
The easiest way to get to Schönbrunn is by public transport: take U4 (green) west or tram 58 west and get off at the Schönbrunn stop.
Since 1996, the Palace is designated a UNESCO World Cultural Heritage Site.