🌐EnglishEnglishEspañolالعربيةفارسی中文日本語EntityQ6804522· pop 7· linked from 266 articlesmechanical floorAlso known as mechanical penthouse, mechanical layer, mechanical levelmechanical rooms-only skyscraper sectionAvailable in 6 languagesEspañolالعربيةHebrewLithuanianفارسیvia Wikidata sitelinks · CC0ConnectionsWorld Trade Center (1973–2001)ConceptWillis TowerEntityCategoriesFloorsHeating, ventilation, and air conditioningRoomsSkyscrapers