The Witte Huis or White House is a skyscraper in Rotterdam, inspired by American office buildings and built in 1898 in the Art Nouveau style. The building is 43 m (141 ft) tall, with 10 floors, and was the tallest in Europe at the time it was built. The building is listed as a Rijksmonument. The architect W Molenbroek designed the 10-storey building, at the time an unprecedented height in Europe. It is constructed from iron, steel, and cement, and includes two thick interior walls to increase strength. Unlike many other contemporary buildings of the time, wood was not a significant construction material due to the fear of fire. It was also one of the few buildings in central Rotterdam to survive the German bombing campaigns of World War II.