Please answer the following question: One California Plaza is a 176 m (577 ft) skyscraper located on the Bunker Hill District district of downtown Los Angeles California. The tower is part of the California Plaza project consists of two unique skyscrapers One California Plaza and Two California Plaza. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
Answer:
Building