Final answer:
Gothic cathedrals were major architectural accomplishments of the Middle Ages, featuring pointed arches, ribbed vaults, and flying buttresses. These structures displayed advancements in engineering and design, with notable examples such as Notre Dame Cathedral and Chartres Cathedral.
Step-by-step explanation:
Gothic cathedrals were a major architectural accomplishment of the Middle Ages. These buildings were constructed with distinct characteristics such as pointed arches, ribbed vaults, flying buttresses, and large stained glass windows. They represented a shift from the earlier Romanesque style and showcased advancements in engineering and design. Examples include Notre Dame Cathedral in Paris and Chartres Cathedral in France.