
The Top Ten Extraordinary Discoveries: Ten archaeological finds, including mysterious spheres and a lost city, challenge our views on human origins and extraterrestrial links. (S17, ep 1)

The Top Ten Extraordinary Discoveries: Ten archaeological finds, including mysterious spheres and a lost city, challenge our views on human origins and extraterrestrial links. (S17, ep 1)

The Top Ten Mysterious Monoliths: Discover the top ten mysterious monoliths, from a 500-ton stone tied to UFOs to giant statues hinting at advanced tech and visitors. (S17, ep 2)

The Top Ten UFO Crashes: An acorn-shaped crash, a craft in Japan and a baffling impact in Britain - could these strange events prove Earth has been visited? (S17, ep 4)

Top ten Unexplained Technology: Explore 10 astonishing, unexplained technologies: from golden orbs in Mexico to a sacred box said to speak with the heavens. (S17, ep 5)

The Top Ten Secret Projects: Secret agents, silenced UFO witnesses and hidden tech programs - could these mysterious projects prove contact with extraterrestrials? (S17, ep 3)