The kitchen island. The obvious first is the kitchen island, and how it has evolved from the restaurant bar. But the island also pays homage to the way restaurant kitchens are set up: modular and freestanding and often arranged in a galley design. Then there's the open kitchen and kitchen-as-theater trend in both residential kitchen and restaurant design that I think is here to stay. Once upon a time both types of kitchens were closed off with a swinging door!