A human specimen is displayed at Gunther von Hagens' "Body Worlds" exhibit in Dallas, April 3, 2007. More than 22 million people in 35 cities have visited the exhibit since it debuted in Japan in 1995. Since von Hagens' donation program began in 1983, 7,652 people have agreed to donate their bodies and 461 have already died. AP Photo logo AP Photo 34 months ago

A human specimen is displayed at Gunther von Hagens' "Body Worlds" exhibit in Dallas, April 3, 2007. More than 22 million people in 35 cities have visited the exhibit since it debuted in Japan in 1995. Since von Hagens' donation program began in 1983, 7,652 people have agreed to donate their bodies and 461 have already died.