Altstadt (old town) is a maze of narrow streets and picturesque squares, home to a lively mix of bars, restaurants and shops. But the city is also a modern metropolis, with a world-class exhibition centre, a buzzing nightlife and a large student population. The Schloss (palace) is a must-see, as is the Herrenhausen Gardens, a sprawling Baroque park with a world-famous glasshouse. After a day of sightseeing, relax in one of the many beer gardens in the city or enjoy a concert at the famous Opera House.