Lviv was the centre of the historical regions of Red Ruthenia and Galicia. The historical heart of the city, with its old buildings and cobblestone streets, survived Soviet and German occupations during World War II largely unscathed. The city has many industries and institutions of higher education such as Lviv University and Lviv Polytechnic. Lviv is also the home of many cultural institutions, including a philharmonic orchestra and the Lviv Theatre of Opera and Ballet. The historic city centre is on the UNESCO World Heritage List.