Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page Château de Chambord:

"

In 1939, shortly before the outbreak of World War II, the art collections of the Louvre and Compiègne museums (including the Mona Lisa)[citation needed] were stored at the Château de Chambord. An American B-24 Liberator bomber crashed onto the château lawn on 22 June 1944.[5] The image of the château has been widely used to sell commodities from chocolate to alcohol and from porcelain to alarm clocks; combined with the various written accounts of visitors, this made Chambord one of the best known examples of France's architectural history.[6] Today, Chambord is a major tourist attraction, and in 2007 around 700,000 people visited the château.[2]