Apart from the palace in the center, the ducal family had a large palace on the banks of the Rhine, known as Schloss Biebrich. This baroque building was erected in the first half of the 18th century. North of the city is the Neroberg. From the top of this hill it is possible to view a panorama of the city. The Nerobergbahn funicular railway connects the city with the hill. One of the three Hessian state museums, Museum Wiesbaden is located in Wiesbaden. Other churches are the Bergkirche, completed in 1879 in Gothic Revival style, and the Lutherkirche, finished in 1910 in Jugendstil. The church Mariä Heimsuchung is a tall concrete landmark in the Kohlheck suburb. Oriental Christianity is also represented with the St. Isaiah Syriac Orthodox Church on the Willi-Juppe-Straße in Dotzheim, built 2016 by Suryoye-Assyrians. The Warmer Damm park is a 4.5-hectare park on the east side of Wilhelmstrasse and south of the State theater and Kurhaus which features a lake, a fountain, various statues, and large grassy areas. The park was created in 1859–1860 and is named after the medieval fortifications around a pond into which the warm waters of the town's 26 warm springs flowed. The city of Wiesbaden is divided into 26 boroughs: five in the central city and 21 suburban districts. The 21 suburban districts were incorporated in four phases from 1926 to 1977. The former right Mainz suburbs Amöneburg, Kastel and Kostheim have belonged to Wiesbaden since 1945. The information up to 2007 was retrieved from "Die Wiesbadener Oberbürgermeister seit dem Bau des neuen Rathauses (1886)" (The Wiesbaden Mayors since the construction of the new town mayor hall (1886).) Wiesbaden is well connected to the German motorway ("Autobahn") system. The Wiesbadener Kreuz is an Autobahn interchange east of the city where the Bundesautobahn 3 (A 3), Cologne to Würzburg, and the Bundesautobahn 66 (A 66), Rheingau to Fulda, meet. With approximately 210,000 cars daily it is one of the most heavily used interchange in Germany.