Since 1998: UNESCO World Heritage Site - symbol of the European Enlightenment and Classicism
What's included: 11 places in and around Weimar (e.g. city palace, parks, Goethe's garden house)
What to see: Palaces, parks (e.g. Belvedere), residences of famous personalities - evidence of the Classical period and icons of Goethe & Schiller
Address: spread throughout Weimar - e.g. City Palace in the park on the Ilm Wikipedia
Distance/driving time: approx. 110 km/ approx. 80 min
Parking: Car parks in the city centre and at main sites
Information on admission and opening times can be found here https://www.unesco.de/staette/klassisches-weimar/