You might arrive at London’s Beaverbrook Town House and assume you’re checking into a one-of-a-kind boutique hotel. Each of the 14 plushly appointed rooms is named after a local landmark. In the Haymarket, one of Beaverbrook’s first-floor suites, vintage Oscar Wilde posters coexist with a hardbound edition of the defunct British quarterly The Yellow Book.

But, as John Donne noted, “no man is an island.” Neither, as it turns out, is Beaverbrook. It’s one of 2,400 properties in the portfolio of Mr & Mrs Smith, a hotel-booking service that represents some of the best independent boutique hotels in the world.