Despite decades of research, many mysteries remain about the ancient Maya. Now, archaeologists are unearthing new clues that transform long held ideas about how these people came to dominate vast areas of Mexico and Central America. Through immense lost monuments, ancient inscriptions and new forensic evidence, this series tracks the Maya from their earliest origins all the way to the present day, unlocking the dark secrets of the rise and fall of the Maya.

Are we finally a step closer to understanding the great unknown and what it may – or may not – hold? Man has always been curious about what is really out there in the vastness of space, and UFO sightings have been reported for years. Now, with video footage of sightings, radar evidence and eyewitness accounts from around the world, UFOs: The Untold Stories (Tuesdays at 8pm from 13th November) provides an in-depth look at the fascinating and disturbing aspects of encounters with the unexplained.

After a series of grisly livestock killings in the mid-90s, reports arose of a mysterious fanged dog-like creature. Could it be the legendary chupacabra, the blood sucking mythical creature of the Americas.