Serendipity 3

Those with a sweet tooth should hotfoot it to this old-school dessert parlour on the brownstone-lined Upper East Side, just steps from the Roosevelt Island Tramway. The colourful, groovy café has always attracted a star following, and counts Marilyn Monroe and Andy Warhol among its former customers. Be sure to order the iconic Frrrozen Hot Chocolate, an indulgent, ice-cold concoction topped with a mound of whipped cream. Alternatively, consider the over-the-top drug store sundaes, large enough for two.