मुसम्मन बुर्ज़ - ताजमहल की तरफ उन्मुख आलिन्द (छज्जे) वाला एक बड़ा अष्टभुजाकार बुर्ज़Agra Fort has quite a few secret subterranean apartments and edifices. It is said that the complete fort is interconnected through