Visitors pose for pictures with wax models of Britain's Prince William and his wife Catherine at Madame Tussauds in Berlin, Germany, on Nov. 21, 2012. The Berlin branch of Madame Tussauds opened in 2008. (Xinhua/Pan Xu)

A visitor takes pictures of a wax model of former U.S. President John F. Kennedy at Madame Tussauds in Berlin, Germany, on Nov. 21, 2012. The Berlin branch of Madame Tussauds opened in 2008. (Xinhua/Pan Xu)

 A visitor poses for pictures with a wax model of Marilyn Monroe at Madame Tussauds in Berlin, Germany, on Nov. 21, 2012. The Berlin branch of Madame Tussauds opened in 2008. (Xinhua/Pan Xu)

 A visitor poses for pictures with a wax model of Germany's renowned goalkeeper Oliver Kahn at Madame Tussauds in Berlin, Germany, on Nov. 21, 2012. The Berlin branch of Madame Tussauds opened in 2008. (Xinhua/Pan Xu)

 A visitor looks at a wax model of Albert Einstein at Madame Tussauds in Berlin, Germany, on Nov. 21, 2012. The Berlin branch of Madame Tussauds opened in 2008. (Xinhua/Pan Xu)

A visitor looks at a wax model of U.S. President Barack Obama at Madame Tussauds in Berlin, Germany, on Nov. 21, 2012. The Berlin branch of Madame Tussauds opened in 2008. (Xinhua/Pan Xu)

A child plays piano next to a wax model of composer Ludwig van Beethoven at Madame Tussauds in Berlin, Germany, on Nov. 21, 2012. The Berlin branch of Madame Tussauds opened in 2008. (Xinhua/Pan Xu)