Answer the following question: Nina Tower - Nina Tower (Chinese: ) is a twin tower of 80-storey and 42-storey high-rise buildings in Tsuen Wan New Territories Hong Kong. The tower was designed to be the tallest tower in the world at 518 m (1699 ft). However due to its location near Chek Lap Kok Airport the height was restricted to the current 319.8 m (1049 ft).The owner of Chinachem Group later changed her plan and broke it into two towers. Given a choice of categories company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, the text refers to which one?
Answer:
Building