London’s St. John Hotel and Dinner: Location, prices and details

St. John Hotel, 1 Leicester St., London, 3301-8069, https://www.stjohnhotellondon.com. Appetizers, $12.50 to $30; main courses, $30 to $42; desserts, $7 to $13.50.

Dinner by Heston Blumenthal, Mandarin Oriental Hyde Park, 66 Knightsbridge, London, 7201-3833, https://www.dinnerbyheston.com. Appetizers, $21 to $27; main courses, $34 to $60; dessert, $13.50 to $17.

To call from the U.S., dial 011 (the international dialing code), 44 (the country code for Britain) and 20 (city code for London), then the numbers listed above.