A: A highly praised and great work of art.
A groin vault<span> or groined </span>vault<span> (also sometimes known as a double barrel </span>vault<span> or cross </span>vault<span>) is produced by the intersection at right angles of two barrel </span>vaults. The word "groin<span>" refers to the edge between the intersecting </span>vaults<span>. Sometimes the arches of </span>groin vaults<span> are pointed instead of round</span>
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I fell down the stairs in from of the whole school at a peprally....it still haunts me smhhh
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They developed the first mathematical system of painting perspective
