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A portal, in architecture, refers to the entire structure surrounding a doorway, often grand and imposing. This can include porches and the doorways themselves, particularly in significant buildings like cathedrals. The term can also describe the entrance to a bridge or tunnel. More broadly, a portal is a type of door or gate, sometimes elaborate, that serves as an entrance. In a figurative sense, it can also mean an online platform for accessing information or services.123

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