Stainless steel is a very common metal that's used in kitchens. It is used for microwaves, sinks, fridges, and dishwashers. It is stainless and highly durable. Stainless steel is used in architecture in a variety of different ways. Chicago's Home Insurance building was one of the first made with steel. Skyscrapers were made with steel so that they would be properly supported. Steel was the material of choice because of the durability and strength it has.