(CNN) -- CNN Heroes culminates in a live global broadcast from the American Museum of Natural History in New York on Thursday, December 6 at 9 p.m. ET (6 p.m. PT, 2 a.m. Dec. 7 GMT, 10 a.m. Dec. 7 HKT).

"CNN Heroes: An All-Star Tribute" -- hosted by CNN's Anderson Cooper with Christiane Amanpour -- honors the most outstanding viewer-nominated CNN Heroes as chosen by a blue-ribbon panel of world leaders and luminaries.

These are some of the people among us who look around and see a world of possibility and hope.

While they see people and places in need, they also see that their personal power can quietly accomplish remarkable things.

Join us as we honor the CNN Heroes for 2007 in the following categories:

• Defending the Planet

• Community Crusader

• Medical Marvel

• Championing Children

• Fighting for Justice

• Young Wonder (under 18)

• ...and Everyday Superheroes, inspiring us with spontaneous acts of courage.

This is your chance to take one night out of the year to stand up and applaud the world's heroes.

voting in this final round continues until Monday, November 26, 2007 (12 p.m. ET). The top vote-getter will be honored at "CNN Heroes: An All-Star Tribute"!