Blast Furnace- Standing 92 ft tall it dominates the local landscape. The towers are also the last non-operational blast furnaces still standing in the Pittsburgh area. There are currently plans to give the towers a $78 million renovation and make them a highlight of the proposed Homestead Works National Park.
Diagonal Zero Zero - a skyscraper in Barcelona, Spain. It has 110 meters and 24 floors, and it serves as the new headquarters of Telefónica in Catalonia. Diagonal Zero Zero is one of examples of High-tech architecture in the city.