If you've spent any time using a smartphone, you've likely come across QR code stickers, letting you redeem a coupon or get some snippet of information. Mercedes-Benz plans to start putting such codes ...

FILE - A man stands in front of gravestones at the Waldfriedhof cemetery in Munich, Germany, Wednesday, Nov. 1, 2006. (AP Photo/Christof Stache, File) BERLIN (AP) — Police in Munich are investigating ...

FILE - A man stands in front of gravestones at the Waldfriedhof cemetery in Munich, Germany, Wednesday, Nov. 1, 2006. (AP Photo/Christof Stache, File) (Christof Stache, AP2006) BERLIN – Police in ...

BERLIN (AP) — Police in Munich are investigating a mystery: More than 1,000 stickers were put on gravestones and wooden crosses at three cemeteries in the German city, without any indication of where ...

BERLIN (AP) — Police in Munich are investigating a mystery: More than 1,000 stickers were put on gravestones and wooden crosses at three cemeteries in the German city, without any indication of where ...