If you want to experience the city like Hollywood royalty, stay at the Beverly Hills Hotel and Bungalows, where the beds are reportedly extremely comfortable and plenty of celebrities stay in private cottages.

BBC: Following the royals through North America

As a neutral country during World War II, Portugal played host to spies, deposed royalty, black marketers and many others who came to stay at the hotel and play in the casino on the Estoril Coast outside Lisbon.

CNN: 9 glamorous movie-star hotels

Since the hotel opened its doors in 1929 its rooms and famous banquet hall - the Great Room - have housed royalty, politicians and celebrities including actor Orson Welles.

BBC: London's Grosvenor House hotel bought by Indian firm