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Gothic cathedrals are important examples of gothic architecture. Gothic architecture began in Western Europe in the Late Middle Ages. Gothic architecture started in the 12th century, and lasted until the 16th century. Important features of the style are pointed arches, ribbed vaults and flying buttresses.
Today, people associate the style mainly with cathedrals, churches, and abbeys, but it was also used for castles, palaces, universities, and some houses.
Today, many buildings still remain in that style. Smaller ones are thought to be very beautiful, bigger ones are often seen as priceless works of art.
In the 19th century, the Gothic style became popular again, particularly for building churches and universities. This style is called Gothic Revival architecture.

Dogs are mammals, usually to be kept as pets, or work on farms or for the police. Some dogs are trained to be rescue dogs and join teams such as mountain rescue. Today, some dogs are used as pets, and others are used to help humans do their work. They are popular pets because they are usually playful, friendly, loyal, and listen to humans. Dogs often have jobs including police dogs, army dogs, assistance dogs, fire dogs, messenger dogs, hunting dogs, herding dogs, or rescue dogs.