Question: What are the principal external materials of the building in the United States that is 548 ft tall ?

text: List of tallest buildings in the United States
Timeline of tallest buildings
This is a list of the history of the tallest buildings in the United States . This lists buildings that once held the title of tallest building in the United States . † Was the world 's tallest building upon completion
The world's first skyscraper was built in Chicago in 1885. Since then, the United States has been home to some of the world's tallest skyscrapers. Eleven American buildings have held the title of tallest building in the world (9 in New York City). New York City and Chicago have always been the centers of American skyscraper building. The 10-story Home Insurance Building, built in Chicago in 1885, is regarded as the world's first skyscraper; the building was constructed using a novel steel-loadbearing frame which became a standard of the industry worldwide. Since its topping out in 2013, One World Trade Center in New York City has been the tallest skyscraper in the United States. Its spire brings the structure to a symbolic architectural height of 1,776 feet (541 m), connoting the year the U.S. Declaration of Independence was signed, though the absolute tip (or pinnacle) of the structure is measured at 1,792 ft (546 m). However, the observation deck elevation and highest occupied floor of One World Trade Center are surpassed by 432 Park Avenue and Chicago's Willis Tower (formerly and still commonly known as the Sears Tower). Steinway Tower, and Central Park Tower will also have higher occupied floors and roofs upon their completion. Prior to the September 11, 2001 attacks in New York City, the twin towers of the World Trade Center occupied the second and third positions on the list below, behind Willis Tower. The North Tower stood at 1,368 feet (417 m), while the South Tower was 1,362 feet (415 m) tall.
Name Location Years as tallest Height ft ( m ) Floors
Pueblo Bonito Northern New Mexico { { small| 36°3′38″N 107°57′42″W / 36.06056°N 107.96167°W / 36.06056 ; -107.96167 } ( Abandoned 1126 ) 10th century AD - 1754 97 ft ( 30 m ) 6
Christ Church , Philadelphia Philadelphia 39°57′2.60″N 75°8′37.90″W / 39.9507222°N 75.1438611°W / 39.9507222 ; -75.1438611 1754-1810 197 ft ( 60 m ) 1
Park Street Church Boston 42°21′24.42″N 71°3′43.18″W / 42.3567833°N 71.0619944°W / 42.3567833 ; -71.0619944 1810-1828 217 ft ( 66 m ) 1
Phoenix Shot Tower Baltimore 39°17′26.42″N 76°36′20.18″W / 39.2906722°N 76.6056056°W / 39.2906722 ; -76.6056056 1828-1846 234 ft ( 71 m ) 1
Trinity Church New York City 40°42′28.58″N 74°0′43.88″W / 40.7079389°N 74.0121889°W / 40.7079389 ; -74.0121889 1846-1869 279 ft ( 85 m ) 1
Saint Michael 's Church Chicago 41°54′44.79″N 87°38′26.7″W / 41.9124417°N 87.640750°W / 41.9124417 ; -87.640750 1869-1885 290 ft ( 88 m ) 1
Chicago Board of Trade Building Chicago ( demolished 1929 ) 1885-1890 322 ft ( 98 m ) 10
New York World Building New York City ( demolished 1955 ) 1890-1894 348 ft ( 106 m ) 20
Philadelphia City Hall † Philadelphia 39°57′8.85″N 75°9′48.83″W / 39.9524583°N 75.1635639°W / 39.9524583 ; -75.1635639 1894-1908 548 ft ( 167 m ) 7
Singer Building † New York City ( demolished 1968 ) 1908-1909 612 ft ( 187 m ) 47
Metropolitan Life Insurance Company Tower † New York City 40°44′28.54″N 73°59′15.03″W / 40.7412611°N 73.9875083°W / 40.7412611 ; -73.9875083 1909-1913 700 ft ( 213 m ) 50
Woolworth Building † New York City 40°42′44.29″N 74°0′28.96″W / 40.7123028°N 74.0080444°W / 40.7123028 ; -74.0080444 1913-1930 792 ft ( 241 m ) 57
Bank of Manhattan Trust Building † New York City 40°42′25.05″N 74°0′34.73″W / 40.7069583°N 74.0096472°W / 40.7069583 ; -74.0096472 1930 927 ft ( 283 m ) 70
Chrysler Building † New York City 40°45′5.44″N 73°58′31.84″W / 40.7515111°N 73.9755111°W / 40.7515111 ; -73.9755111 1930-1931 1,046 ft ( 319 m ) 77
Empire State Building † New York City 40°44′54.36″N 73°59′8.36″W / 40.7484333°N 73.9856556°W / 40.7484333 ; -73.9856556 1931-1972 1,250 ft ( 381 m ) 102
One World Trade Center † New York City ( destroyed 2001 ) 1972-1974 1,368 ft ( 417 m ) 110
Willis Tower † ( formerly Sears Tower ) Chicago 41°52′43.82″N 87°38′9.73″W / 41.8788389°N 87.6360361°W / 41.8788389 ; -87.6360361 1974-2013 1,451 ft ( 442 m ) 108
One World Trade Center New York City 2013-present 1,776 ft ( 541 m ) 104