Kip in a Jesuit church built in 1852. Almost half of the 51 designer rooms at this four-star Mercure hotel are situated in the triple nave, vaulted choir or between exquisite stone-sculpted columns of the 55m-long neo-Gothic chapel. Contemporary white-polished concrete walls blend in perfectly with ancient cream stone, and the restaurant Les Archives is a memorable dining space beneath stone vaults. Breakfast €16.