Os locais de maior importância e principais atrativos de Wiesbaden são os seus spas e o elegante cassino, construído em 1907, sob a égide do Kaiser Wilhelm II. Outros pontos de atração são o Teatro do Estado de Hessian, o histórico quarteirão antigo com seu palácio, a antiga e a nova sede da prefeitura e a Igreja do Mercado Neo-Gótico, bem como o Palácio Biebrich, localizado às margens do Rio Reno e o morro Neroberg, com sua igreja Russa. Wiesbaden spa assembly rooms and park
Wiesbaden spa assembly rooms, an imposing building with a massive portico of Ionic columns, is a venue for national and international congresses, conferences, exhibitions and cultural events. The casino is located in the former wine hall with its neo-classical interior. Next to it, the spa colonnade (1827), 130 metres in length, is regarded as the longest columned hall in Europe. The English-style spa gardens extend behind the spa assembly rooms.Historical old quarter
Narrow winding streets lined with 18th and 19th century buildings run through Wiesbaden's old quarter. Bäckerbrunnen fountain on Grabenstrasse is now a popular meeting place. The oldest structure in Wiesbaden is the Heidensmauer, or Heathens' Wall, which is close to the Roman gate. 15 different springs flow into the Kochbrunnen drinking fountain and in the 19th century it was the main location in Wiesbaden for taking the waters.Market Church
The Protestant Market Church was built in 1852-1862 by Karl Boos in the form of a neo-Gothic, triple-naved basilica. The west tower is 92 metres high, making it the highest building in the city. The church was the first all-brick building in the Duchy of Nassau. In front of the church, a statue commemorates William of Orange ("The Silent", 1533-1584).