 The Capital One Headquarters, under construction near the McLean station as of 2019, contains the tallest building in Tysons and the Washington metropolitan area at , and is the second-tallest non-communication structure in the Washington metropolitan area after the Washington Monument (which stands ).1775 Tysons Boulevard, constructed by Lerner Enterprises near Tysons Corner station, is the first building in Tysons to achieve platinum status under the Leadership in Energy and Environmental Design (LEED) building rating system and among the first in the Washington metropolitan area.Tysons has the 8th largest retail square footage in the United States with .