US

Another tower, 4 World Trade, opens at site of 2001 terror attacks, facing reflecting pool

  • Four World Trade Center, center, reflects its neighbor, One World Trade Center, left, Thursday, Nov. 7, 2013 in New York. The 1,776-foot One World Trade Center is the marquee skyscraper at ground zero; but the first office tower to open there will be its shorter neighbor 4 World Trade Center on Wednesday, Nov. 13.  (AP Photo/Mark Lennihan)

    Four World Trade Center, center, reflects its neighbor, One World Trade Center, left, Thursday, Nov. 7, 2013 in New York. The 1,776-foot One World Trade Center is the marquee skyscraper at ground zero; but the first office tower to open there will be its shorter neighbor 4 World Trade Center on Wednesday, Nov. 13. (AP Photo/Mark Lennihan)  (The Associated Press)

  • Workers clean the glass windows at the lobby of 4 World Trade Center, Thursday, Nov. 7, 2013, in New York.  The 1,776-foot One World Trade Center is the marquee skyscraper at ground zero; but the first office tower to open there will be its shorter neighbor 4 World Trade Center on Wednesday, Nov. 13. (AP Photo/Mark Lennihan)

    Workers clean the glass windows at the lobby of 4 World Trade Center, Thursday, Nov. 7, 2013, in New York. The 1,776-foot One World Trade Center is the marquee skyscraper at ground zero; but the first office tower to open there will be its shorter neighbor 4 World Trade Center on Wednesday, Nov. 13. (AP Photo/Mark Lennihan)  (The Associated Press)

  • FILE - In this Sept. 11, 2013 file photo, 4 World Trade Center, center, and its neighbor, One World Trade Center, left, are aglow in New York.  The 1,776-foot One World Trade Center is the marquee skyscraper at ground zero; but the first office tower to open there will be its shorter neighbor 4 World Trade Center on Wednesday, Nov. 13.(AP Photo/Mark Lennihan, File)

    FILE - In this Sept. 11, 2013 file photo, 4 World Trade Center, center, and its neighbor, One World Trade Center, left, are aglow in New York. The 1,776-foot One World Trade Center is the marquee skyscraper at ground zero; but the first office tower to open there will be its shorter neighbor 4 World Trade Center on Wednesday, Nov. 13.(AP Photo/Mark Lennihan, File)  (The Associated Press)

Another office tower has opened at the World Trade Center site in lower Manhattan.

A ribbon-cutting was held Wednesday for the 978-foot 4 World Trade Center. It stands near 1 World Trade Center, sometimes called the Freedom Tower. That tower was declared the nation's tallest this week and is expected to open next year.

Four World Trade is designed by Fumihiko Maki (foo-meh-HEE'-koh MAH'-kee). It faces the Sept. 11 memorial's south reflecting pool.

The Port Authority of New York and New Jersey expects to move into 4 World Trade in 2015. The authority lost its home in the twin towers during the 2001 terror attacks.

The official opening means it can start building out its new office space.

Another office tower at 7 World Trade Center opened in 2006.