A day after Joe Daniels, the president of the National September 11 Memorial & Museum, announced that an admission fee would likely be charged, an anonymous donor slid $10,000 in cash into the donation box at the World Trade Center memorial site preview center. That's like 500 tickets to the 9/11 museum right there! "I was home watching the Yankee game when I got a call from the preview center's manager. She asked me if I was sitting down," Daniels tells the Post. "We just found $10,000 in the donation box."

The unknown angel left the donation in the form of 99 hundred dollar bills and five twenties. $370 million in donations from corporations and individuals have been collected so far, but this is by far the largest cash donation. And whoever left it didn't even get a receipt so he or she could get make a tax deduction! Officials tell the Post that they believe the donation was made sometime between 5 p.m., when the box was last checked, and 7 p.m. when the preview site closed. They've checked surveillance tapes to see if they can spot the benefactor, and Daniels says, We'd love to know who it was so we can say thank you."