This image provided by Sergio Loza shows Loza holding up an envelope that had cash hidden in it in San Francisco, on Sunday, May 25, 2014. Loza followed the clues from a Twitter user using the handle @HiddenCash to find the money. The mysterious person has been hiding money throughout the city since Friday that's leading scores on a scavenger hunt. (AP Photo/Sergio Loza)
The Hidden Cash craze is coming to New York this weekend.
The movement's Twitter account posted confirmation, saying: "Lots of Lady Liberties and Mr. Grants will rain in Manhattan and Brooklyn" on Saturday.
The same Twitter account directed people last week to envelopes with $50 and $100 inside them in San Francisco and 36 cash-filled Angry Birds orbs in Hermosa Beach, California.
The altruistic group, which includes real estate investor Jason Buzi, says the giveaways are a "social experiment for good." They encourage people who find cash to "pay it forward."
Hidden Cash is also holding scavenger hunt giveaways Friday in Las Vegas, Saturday in Mexico City and Sunday in Chicago.
They've inspired similar, unaffiliated cash giveaways in St. Louis, Boulder, Colorado and other cities.