Madrid Mayor Manuela Carmena visits Berlin, Germany - 12 Nov 2018
Mayor of London Sadiq Khan signs the city's guest book as Mayor of Madrid Manuela Carmena and Governing Mayor of Berlin Michael Mueller (both not pictured) stand by at the Berlin Town hall in Berlin, Germany, 12 November 2018. Carmena is on an official visit to the German capital in celebration for of the 30th anniversary of the 'Twin' city partnership between Berlin and the Spanish capital of Madrid.