"The New York City skyline is -- once again -- stretching to new heights. The latest progress at the World Trade Center is a testament to New Yorkers' strength and resolve -- and to our belief in a city that is always reaching upward." -- New York City Mayor Mike Bloomberg on the day that One World Trade Center is once the address of the tallest building on the New York skyline. Worth noting: this is a success story for rebuilding green, as the new finished skyscraper is expected to be certified LEED Gold. For an impressive visual: AP has a time-lapse video showing the skyscraper going up.