Stamp

The civil rights icon spent nearly 60 years in public service, including more than three decades representing the Atlanta area. Now, the USPS is paying homage to his years of work.

The most valuable stamp in the world, the British Guiana One-Cent Black on Magenta, failed to set yet another world record at auction.

This year's World Stamp Show had plenty of examples from the developing world. For Pakistan, stamps symbolized independence. In Cuba, they celebrate the health system.

A limited-edition stamp from the U.S. Postal Service, which was intended to honor the late poet, bears a quote that was actually written by a different author.