Wetherell Mayfairs Fitnes Properties

50 Berkeley Square, which now houses Maggs Bros books, is said to be the most haunted house in London – haunted enough to give any psychic the equivalent of an electric shock, just by touching the external brickwork. 44 Berkeley Square – the former home of Lord Claremont – is said to be more benignly haunted by a servant of Lady Isabella Finch who owned the house in 1742. Naturally, he appears in a periwig and green livery.

The London Plane trees that tower over Berkeley Square were planted in 1789 – the year in which the French Revolution began.

Le Gavroche in Upper Brook Street is named after a street urchin in Victor Hugo’s Les Miserables. The restaurant, which opened 45 years ago in 1967, was the first in the UK to be awarded three Michelin stars in 1982. Chefs Marco Pierre White, Gordon Ramsay and Marcus Wareing have all worked in there.