Maya Gaines, of the Baltimore CASH Campaign, tries to encourage people to put aside some of their tax refunds into savings. She rings bells, cheers and dances every time someone decides to do that. Pam Fessler/NPR hide caption

This illustration from an Italian newspaper depicts Gavrilo Princip killing Archduke Francis Ferdinand on June 28, 1914. Achille Beltrame/Wikimedia Commons hide caption

Russian personnel are the first to meet space station crew members when they return to earth. Bill Ingalls/NASA hide caption

Facebook COO Sheryl Sandberg at the 2013 Dreamforce conference in San Francisco. Justin Sullivan/Getty Images hide caption

Pepsi was the first American consumer product to be manufactured and sold in the former Soviet Union. In 1991, Russians could buy the soda for 20 kopeks, about 10 cents. Peter Dejong/AP hide caption

Rebecca Weld (aka The Cookie Architect) nabbed the Oscar of the cookie world for this series of Nantucket-themed biscuits. Courtesy of Rebecca Weld via Cookie Connection hide caption

A set of littleBits comes with more than 40 different types of electronic pieces that connect with magnets. NPR hide caption