One World Trade Center is the main building of the rebuilt World Trade Center complex in Lower Manhattan, New York City. It is the tallest building in the Western Hemisphere, and the sixth-tallest in the world. The supertall structure has the same name as the North Tower of the original World Trade Center, which was completely destroyed in the terrorist attacks of September 11, 2001. 

Irish architect James Hoban was the man behind the design of the White House. In 1792 Hoban submitted a plan for the presidential mansion and subsequently got the commission to build the White House. Constructed began in 1793 through to completion in 1801. 

The San Francisco–Oakland Bay Bridge  is a complex of bridges spanning San Francisco Bay in California. As part of Interstate 80 and the direct road between San Francisco and Oakland, it carries about 240,000 vehicles a day on its two decks. It has one of the longest spans in the United States.

Nereu Ramos Palace, also referred to as the National Congress Palace, is the building constructed to house the Brazilian National Congress, inaugurated in 1960, was designed by Oscar Niemeyer, with a structural calculation by Joaquim Cardoso.