Mass grave
During the Bosnian War (1992-1995), the Bosnian Serb Army killed more than 8,000 Bosnian Muslims in the Srebrenica genocide.  They buried them in mass graves.  In 2003, mass grave specialists found a mass grave that was "as big as a tennis court."  It included victims of the Srebrenica genocide.  By 2006, 42 mass graves had been found around Srebrenica, and specialists think there are at least 22 more.  Another 2,070 victims have been found in the graves.