Satellites orbit Earth at 17,000 miles an hour, capturing images of our world that are breathtaking, but some are bizarre. This unique perspective reveals objects that seem to make no sense & phenomena that defy explanation. Such images force the question, what on Earth is that?

Scattered around the world are long-forgotten engineering marvels, decaying cities and empty factories that once stood on the cutting edge of design and construction. Today they are discarded, dangerous, and some of them are even deadly. Mysteries of the Abandoned reveals why these engineering triumphs were built and how they were left to crumble. In each hour long episode, stories tell of who originally designed the structure, its historical significance, and why it was ultimately no longer viable. California's Goat Canyon Trestle railway, Pennsylvania's Kinzua Viaduct steel bridge, the Grand Goulets Road in the French Alps, and Hashima Island, a once thriving and now deserted Japanese island, are among episode subjects.

Jamie Theakston uncovers the startling truth behind great myths, historical legends, conspiracy theories, ancient treasures, lost civilisations and war time secrets.

The Alaska Triangle - has been home to so much unusual activity that it has struck fear across Alaska and the world.

Jamie Theakston uncovers the startling truth behind great myths, historical legends, conspiracy theories, ancient treasures, lost civilisations and war time secrets.

Jamie Theakston uncovers the startling truth behind great myths, historical legends, conspiracy theories, ancient treasures, lost civilisations and war time secrets.

Using cutting-edge forensic analyses, some of the world's leading investigative experts uncover the stunning truth behind compelling mysteries from ancient times to the recent past.

The Alaska Triangle - has been home to so much unusual activity that it has struck fear across Alaska and the world.

The Alaska Triangle - has been home to so much unusual activity that it has struck fear across Alaska and the world.