What on Earth?

Satellite images capture a bizarre industrial complex in the remote and vast desert expanse of Kazakhstan; experts investigate and uncover a massive hangar containing the most expensive spacecraft in the history of Soviet era space exploration.

Satellite images capture dozens of perfectly straight parallel lines hidden in the dense Polish woodlands; experts investigate and uncover a massive WWII military complex once used as a notorious and deadly Nazi weapons training facility.

Satellite images capture bizarre structures fenced within a remote mountaintop complex on the Greek island of Kefalonia; experts investigate and discover a network of massive satellites linked to a hidden NATO doomsday communications bunker.

Satellite images capture monumental ruins surrounded by bizarre feather-shaped structures on a Welsh mountaintop; experts investigate and uncover a hidden tunnel containing the remains of an abandoned slate mine with an exploitative and deadly past.

Satellite images capture a triangular castle-like tower located on the Mediterranean island of Sardinia; experts investigate and uncover the relics of a declining ancient civilization that may have suffered a celestial catastrophe.

Satellite images capture two conjoined circular structures embedded in the lush and rolling landscape of Ireland; experts investigate and uncover an ancient site linked to legendary figures and the elusive hunt for the Ark of the Covenant.

Aerial drone imaging captures oddly shaped industrial-sized towers mysteriously situated in a forest clearing near Moscow; experts investigate and uncover a lost Soviet era military compound and the development of a catastrophic electromagnetic weapon.

Satellite images capture a series of enormous zigzagging patterns carved into the remote woodlands of Poland; experts investigate and uncover a clandestine Nazi base linked to a doomed operation that played a pivotal role in the downfall of WWII Germany.

Aerial drone imaging captures clusters of enormous, perfectly round holes scattered along the coast of the Dead Sea in Israel; experts investigate and reveal a history of destructive water diversion linked to massive sinkholes devouring the region.

Aerial archaeologists capture bizarre, spider-like markings etched deep into the mountains of Northern Spain; experts investigate and uncover an ancient site that contained one of the largest and most important gold mining operations of the Roman Empire.