A hallmark in hospitality for 150 years, the Langham, London, has once again raised the bar on baronial accommodations with an over-the-top renovation that included the debut of the Langham Club. Opened by the Prince of Wales in 1865 and a centerpiece of the city’s well-heeled West End, the hotel now embodies elegance and exclusivity more than ever with the addition of its new amenities.

A refined retreat, the Langham Club encompasses two floors of the hotel and rolls out the royal treatment with custom…