You’ll find one in every city from Key West to Kuwait. Its burgers (though excellent) nudge £20, it’s cramped, and much of the so-called memorabilia consists of instruments played once and tossed aside. But this Hard Rock was the world’s first, opened in 1971, so there is a grudging authenticity. And you don’t have to eat here to take a free tour of its cellar museum, The Vault (until 10:30pm), packed with historic guitars.