Simple categories matching magnificent:

• creature,
• building,
• bird,
• palace,
• raptor,
• structure,
• construction,
• architecture,
• location,
• monument,

Members with property magnificent:

• bald_eagle,
• dugong,
• palace,
• winter_palace,
• old_church,
• meeting_hall,
• goshawk,
• zebra,
• mosque,
• bar_wall,
• pantheon,
• princess,
• quetzal,
• umayyad_mosque,
• humpback,
• flower_palace,
• saint-james_cathedral,
• northern_goshawk,
• montreal_building,
• alhambra_palace,
• stingray,
• rhino,
• cathedral,
• duomo,
• pearl_palace,
• temple,
• toucan,
• macaw,
• great_cathedral,
• shark,
• pyramidal_temple,
• assembly_room,
• tiger,
• lion,
• parliament_house,
• main_house,
• woolly_mammoth,
• eel,
• gran_casino,
• synagogue,
• hermitage,
• fountain_abbey,
• church,
• vulture,
• turtle,
• florida_panther,
• hyacinth_macaw,
• tigers,
• stock-exchange_arcade,
• world_theatre,
• city_wall,
• elephant,
• white_hawk,
• brown_pelican,
• golden_eagle,
• wainwright_building,
• hotel,
• theater,
• monument_valley,
• bishop_palace,
• eagle,
• peregrine,
• irish_elk,
• owl,
• imperial_palace,
• universe,
• agra_fort,
• royal_albatross,
• wildebeest,
• harris_hawk,
• orca,
• glorious_minster,
• falcon,
• state_opera,
• blue_mosque,
• hawk,
• castle,
• annunciation_cathedral,
• theatre,
• art-history_museum,
• wolf,
• coyote,
• leopard,
• cheetah,
• caravanserai,
• warwick_castle,
• collegiate_church,
• osprey,
• custom_house,
• narwhal,
• york_minster,
• dolphin,
• liston_building,