—The last office tower planned for the 16-acre trade center site is 2 World Trade Center at the northeast corner. The 88-story skyscraper will not be built until the market improves enough to fill it.
—The transportation hub at the trade center is scheduled to be completed in 2015. It original cost estimate of $2.2 billion has been revised to $3.94 billion. It will connect 13 subway lines and PATH trains to New Jersey, serve 250,000 travelers a day and replace the temporary PATH station that was built after the attacks. There will be two levels of retail space.
—Plans for a performing arts center at the trade center have changed several times since the attacks. A board of directors was appointed last year and given the task of raising funds.