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   NEW YORK (AP) — One World Trade Center already is New York's tallest building.

   And when the last pieces of its spire rise to the roof — weather permitting — the 104-floor skyscraper that replaces the fallen twin towers will be just feet from becoming the highest in the Western Hemisphere.

   The Port Authority of New York and New Jersey says the spire pieces plus a steel beacon will then be lifted at a later date from the rooftop to cap the building at 1,776 feet.

   Installation of the 800-ton, 408-foot spire began in December, after 18 pieces were shipped from Canada and New Jersey.

   The spire will serve as a world-class broadcast antenna.

   With the beacon at its peak to ward off aircraft, the spire will provide public transmission services for television and radio broadcast channels that were destroyed on Sept. 11, 2001, along with the trade center towers.

   Overlooking the Statue of Liberty and Ellis Island, the high-rise is scheduled to open for business in 2014.

   The tower is at the northwest corner of the site, which is well on its way to reconstruction with the 72-story 4 World Trade Center and other buildings.

   Monday's celebration of the reconstructed trade center comes days after a grisly reminder of the terror attack that took nearly 3,000 lives: the discovery of a rusted piece of airplane landing gear wedged between a nearby mosque and an apartment building — believed to be from one of the hijacked planes that ravaged lower Manhattan.

   As officials prepared to erect the spire, the office of the city's chief medical examiner was working in the hidden alley where debris may still contain human remains.

   The new tower's crowning spire is a joint venture between the ADF Group Inc. engineering firm in Terrebonne, Quebec, and New York-based DCM Erectors Inc., a steel contractor.

   The world's tallest building, topping 2,700 feet, is in Dubai.

NEW YORK -- AP -- There may be another billionaire interested in New York City's top job.

Jack Dorsey, co-founder of the popular social media service Twitter and the mobile payments startup Square, reportedly says he wants to be mayor of New York one day. Dorsey is from St. Louis. In an interview aired Sunday on "60 Minutes," CBS' Lara Logan said Dorsey is serious about moving to the Big Apple someday and running for mayor. Dorsey tells Logan that what he loves about New York is the electricity he feels when he's in the city.

In Forbes latest ranking of the 400 wealthiest Americans, a list which requires $1.2 billion in net worth for entry, newcomer Dorsey was listed at No. 392. Current mayor, Michael Bloomberg, is listed at No. 10 with an estimated net worth of $25 billion.

NEW YORK (AP) - Andy Williams' song repertoire was all American - but his art collection was eclectic.

Christie's will be auctioning his wide-ranging selection of artworks May 15-16. It's expected to realize $30 million.

The late singer's taste ranged from contemporary, impressionist and modern to Latin American and 20th century decorative art and design.

He collected over a 60-year period. He displayed the works at his California and Missouri homes, as well as his Moon River Theater in Branson, Mo.

Among the highlights are several Willem de Koonings and pieces by Richard Diebenkorn (DEE'-bihn-kohrn), Jean-Michel Basquiat (zhahn mee-SHEHL' BAH'-skee-aht) and Pablo Picasso.

He died last year at age 84. The baritone was known for his wholesome, middle-America appeal and easy-listening hits including the theme to the Oscar-winning tearjerker "Love Story."