Taken by the likes of Rodney Alcala, Harvey Glatman, and the BTK Killer, these macabre photos show how some serial killers used photography to lure their victims and relive their horrifying crimes.

Fashionable Viking accessories found in Denmark, Depression-era cash hoard unearthed in New Jersey, giant-headed prehistoric amphibian discovered in Germany.

Archaeologists find Ice Age "ghost tracks" in Utah, Hitler's gold watch set to go to auction, Slovenian fires set off bombs from World War I.

"Monumental" Roman city uncovered in Spain, England's oldest shipwreck found in Dorset, decades-old murder case solved in New Jersey.

Iron Age skeletons found alongside animal sacrifices in England, Viking artifacts discovered among costume jewelry in Norway, and a hidden van Gogh uncovered in Scotland.

Human bone jewelry uncovered in Russia, pipe tomahawk returned to the Ponca tribe, giant prehistoric kangaroo found in Papua New Guinea.

Head from a 2,000-year-old Hercules statue found in a Greek shipwreck, submerged WWII barge reappears in Italy, ancient Roman temples unearthed in the Netherlands.

Mastodon tusk reveals evidence of bloody clash, mass grave of Iron Age frogs uncovered, 500-year-old skeletons found under Irish pub.

Lost Renaissance masterpiece found in England, medieval saber found in Greece, hidden cities uncovered in the Amazon.

Bronze Age sunken city emerges from the Tigris River, ancient paintings found beneath layers of bird poop in Egypt, dozens of Spanish colonists' skeletons uncovered in Peru.

Ancient phallus carving found at Hadrian's Wall, Bronze Age funeral pyre uncovered in Italy, Roman "service station" unearthed in England.