One of the most identifiable aspects of Gothic architecture is the pointed arch. Later medieval architects discovered a way to make the arch reach greater heights. The pointed arch redirects the weight in a more vertical way. It also makes windows of different widths and sizes possible. Along with other developments this provided a way for the cathedrals from that period to maintain these heights with less support than was needed in Romanesque architecture. This also became the time period when stained glass began to gain prominence in these structures.