Soldiers care for the wounded on the first day of the Battle of Passchendaele on July 31, 1917. Fought in West Flanders, Belgium, Passchendaele was one of the war's most costly clashes. Imperial War Museum, London hide caption

itoggle caption Imperial War Museum, London

Bernie Madoff leaving U.S. District Court in Manhattan after a bail hearing in New York, Monday, Jan. 5, 2009. The former executive chairman of NASDAQ was sentenced to 150 years in prison in 2009 for his role in a massive Ponzi scheme. Kathy Willens/AP Photo hide caption

itoggle caption Kathy Willens/AP Photo

Gary Vaynerchuk reviews wines, including the official champagne of Prince William and Kate Middleton's wedding, for the Daily Grape. Vaynerchuk began video blogging wine reviews in 2006. via Daily Grape hide caption

itoggle caption via Daily Grape

Bat bugs typically feed on bats. But when no bats are available, these parasitic creatures will happily feed on humans, too. Graham Snodgrass/AFPMB/Flickr hide caption

itoggle caption Graham Snodgrass/AFPMB/Flickr