In the first half, members of the Hollywood Ghost Hunters, Rick McCallum, Louis Horowitz, and Robert Pendergraft discussed the many haunted locations they've investigated and described details of their ghost adventures in places such as the Queen Mary, and the Whaley House.
The city of Clintonville, WI has experienced unexplained booming and rattling noises the last two nights.
George Knapp highlights a number of news items including his report on who tried to kill casino owner Lefty Rosenthal (his burned Cadillac pictured), and an article about what's under Lake Vostok in Antarctica.
Joe Bullard shares an image of a prehistoric Swiss rock painting of a "spaceman" that closely resembles an alien face Ed Leedskalnin carved at Coral Castle.
Using sonar, treasure hunters have discovered a mysterious disc-shaped object on the floor of the Baltic Sea, between Sweden and Finland. The hunters hope to receive funding from a TV production company to further explore the object, which is 197-feet in diameter.
Check out some of the items that have recently caught George Knapp's attention, including HD images of Mars (pictured) and two vintage newspaper articles-- one postulating what life will be like in 100 years, the other declaring that Mars has an intelligent civilization.
Check out some of the items that have caught George Knapp's attention, including articles about a Russian satellite crash, and a Grand Canyon mystery.
Images of two lunar anomalies discussed on the 12/25/11 show.
In a 1989 photo, Colin Andrews is seen at a crop circle in Hampshire U.K., taking site details.
NASA footage of a CME hitting Mercury appears to show the blast of plasma hitting an additional planet-sized object nearby.
Could a strange mummified skull found in Peru be the remains of an extraterrestrial? Anthropologists are baffled by the bizarrely shaped head, which is nearly as large as its body.
Gigantic structures in the middle of the Chinese desert have been spotted on Google Maps. One theory is that they could be grids for calibrating spy satellites.
This uncanny cloud formation, resembling a giant eagle swooping down from the sky, appeared above Cumbria, UK.
Check out some of the items that have caught George Knapp's attention in the last week, including an article about mysterious lines in the Middle East that can be seen only from the air (pictured), and an investigation into the Jerusalem UFO videos:
Unexplained Mysteries has posted footage taken from a NASA satellite and broadcast on FOX News that appears to show a strange object flying above Hurricane Irene.
A number of items have caught George Knapp's attention this week, including an article about scientific claims of alien life (a microbe in a meteorite is pictured).
Carmen Boulter sent us several images, and links to three photo galleries, in tandem with her 7/27/11 appearance.
George Knapp shares a number of items this week, including his I-Team video report on a possible serial killer in Northern Nevada.
A 200-ft diameter crop circle has turned up in a wheat field right next to the famous ancient monument, Stonehenge, prompting questions as to who is responsible.
Using the map program Google Mars, David Martines, a self-described "armchair astronaut," discovered an anomalous structure on the Red Planet he's dubbed "Bio Station Alpha."
Hieroglyphic markings unseen for 4,500 years have been revealed by a robot explorer inside a secret chamber in the Great Pyramid of Giza.
A Soyuz rocket carrying a military communications satellite into orbit produced a stunning display of blue light as it blazed over the Russian city of Ekaterinburg.
Sunday night's guest, Marshall Masters, discussed this crop formation which he believes is a key warning of events that will unfold in 2012.
Thousands of beetles are swarming around Surfers Paradise in Queensland, Australia. Scientists don't yet have an explanation for the invasion of the large black water beetles.