BERLIN, GERMANY - JUNE 24:  Queen Elizabeth II arrives to attend the Queen's Lecture at the Technical University on the second of the royal couple's four-day visit to Germany on June 24, 2015 in Berlin, Germany. The Queen and Prince Philip are scheduled to visit Berlin, Frankfurt and the concentration camp memorial at Bergen-Belsen during their trip, which is their first to Germany since 2004.  (Photo by Sean Gallup/Getty Images)