A round structure that is typically topped with a dome and associated with libraries is called a rotunda . This architectural style is prevalent in various public and cultural buildings. The other options provided are not suitable for libraries. ;
The correct option for a round structure topped with a dome associated with libraries is the rotunda . This architectural style features a circular design often used for important buildings, including libraries. Other options like tholos, corbel dome, and onion dome describe different architectural concepts that are not specifically linked to libraries.
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