Given the question: Torre PwC - The Torre PwC formerly Torre Sacyr Vallehermoso is a 52-floor 236 metre (774 feet) tall skyscraper completed in 2008 located in Madrid Spain. Torre Sacyr Vallehermoso is one of four buildings in the Cuatro Torres Business Area. It was designed by Carlos Rubio Carvajal and Enrique Alvarez-Sala Walter and was built by Sacyr Sau. 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?
The answer is:
Building