Want to satisfy your hunger pangs with World's Most Expensive Sandwich, then pay a visit to the Serendipity Restaurant in New York to taste the cheese toastie dipped in gold. Everything comes at a cost of whooping $214. The restaurant provides the facility of pre-orders 2 days in advance.Newyork's Serendipity Restaurant holds the Guinness World Record for coming up with World's Most Expensive Sandwich.Chef Joe Calderoni says the idea was to create World's Most Expensive Sandwich on the National Sandwich Day. Grilled Cheese Toastie was preferred as its an ultimate comfort food. Tomato and Labster Bisque was served in a crystal glass. You just can't resist yourself upon watching the 23 carat gold coated Sandwich.Serendipity Restaurant is very famous across the World. Even celebrities like Marilyn Monroe and Beyonce used to pay regular visits to this place.