seat of one of the six "chambers" of the Vereenigde Oostindische Compagnie (VOC), the Dutch East India Company and one of the five "chambers" of the West-Indische Compagnie (WIC), the Dutch West India Company. The greatest spurt of growth, both in port activity and population, followed the completion of the Nieuwe Waterweg in 1872. The city and harbour started to expand on the south bank of the river. The Witte Huis or White House skyscraper, inspired by American office buildings and built in 1898 in the French Art Nouveau style, is evidence of Rotterdam's rapid growth and success. When completed, it was the tallest office building in Europe, with a height of . 20th century During World War I, the city was the world's largest spy centre because of Dutch neutrality and its strategic location between Britain, Germany and German-occupied Belgium. Many spies who were arrested and executed in Britain were led by German secret agents operating from Rotterdam. MI6 had its main European office on de Boompjes. From there the British coordinated espionage in Germany and occupied Belgium. During World War I, an average of 25,000 Belgian refugees lived in the city, as well as hundreds of German deserters and escaped Allied prisoners of war. During World War II, the German army invaded the Netherlands on 10 May 1940. Adolf Hitler had hoped to conquer the country in just one day, but his forces met unexpectedly fierce resistance. The Dutch army was forced to capitulate on 15 May 1940, following the bombing of Rotterdam on 14 May and the threat of bombing other Dutch cities. The heart of Rotterdam was almost completely destroyed by the Luftwaffe. Some 80,000 civilians were made homeless and 900 were killed; a relatively low number since many had fled the city because of the warfare and bombing going on in Rotterdam since the start of the invasion three days earlier. The City Hall survived the bombing. Ossip Zadkine later attempted to capture the event with his statue De Verwoeste Stad ('The Destroyed City'). The statue stands near the Leuvehaven, not far from the Erasmusbrug in the centre of the city, on the north shore of the river Nieuwe Maas. In 1941, 11,000 Jews still lived in Rotterdam. Before the war there were 13,000. Between 30 July 1942, and 22 April 1943, 6,790 people were deported in 8 transports via Loods 24. The vast majority