Please answer the following question: OKO is a complex of buildings located on plot 16 in the Moscow International Business Center in Moscow. The site is divided into 16a and 16b.Section 16aOn the section 16a two high-rise buildings will be built one of 49 storeys and 245 meters high (North Tower) and the other of 85 storeys with a height of 352 meters (South Tower). Each building will also have an underground floor. 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?
A:
Building