Building new stairs in a historic monument, for example, always creates some visual disruption, but this can be minimised by making the stairs from glass. The glass stairs were built by innovatively applying very large glass plates and technically well thought out connection techniques. Glass is a promising and very durable construction material. It is 100% recyclable and does not have to be protected from rust or rotting. The surface is hard and smooth and very water resistant. Bacteria, plants and animals will not be able to grow on it and it is easy to clean.