Decadence permeates this elegant tearoom, from the 19th century-style interior and service to the labyrinthine corridors that lead to the toilets. While you bask in the warm glow of bygone wealth, indulge in tea, pastries (the pistachio pain au chocolat is heavenly) and, above all, the hot chocolate. It's a rich, bitter, velvety tar that will leave you in the requisite stupor for any lazy afternoon.
Even better, the most delicious of Parisian boutiques Ladurée is staying open late into the night. Perfect for fulfilling any sudden cravings for the classic macaron (in all its wondrous flavours) or a dessert like biscuit sandwiches from Nantes, French-style lollipops or marshmallows. So when midnight peckishness comes, you know where to go.