To honor the 3,000 lives lost on September 11, 2001, two bright lights are currently piercing the New York City skyline, where the World Trade Towers once stood.

As on each of the ten anniversaries since the Sept. 11 attack, New York has illuminated the sky with its Tribute Lights. A total of 88 spotlights sit where the twin towers once did, thanks to the The Municipal Art Society of New York.

This year, the lights have company in the form of One World Trade Center, also know as the Freedom Tower. The Freedom Tower is still under construction, but when it's completed (estimated date in 2013) it will be 1,776 feet high and have 82 floors. It will be the tallest building in Manhattan.

The tower will be part of a larger memorial complex, which will include two depressed fountains where the original towers stood, as well as a museum and a monument to those who lost their lives.

On Sunday, the 10th anniversary of the attack, President Barack Obama will be joined by former President George W. Bush at the ground zero site. The two leaders will give speeches, and the name of each victim will be read aloud. Tributes are also being held in Pennsylvania and at the Pentagon, at the sites of the other two attacks that day.

If Sunday night is clear of clouds, the light Tribute will be able to be seen from at least 60 miles away. But whether or not Americans will be able to see the bright display, the twin towers, and more importantly that infamous day 10 years prior, will be present on an entire nation's mind.