Satellites capture a bizarre industrial complex in desert of Kazakhstan.

Satellites capture dozens of parallel lines hidden in Polish woodlands.

Satellites capture ruins amid bizarre structures on a Welsh mountaintop.

Satellite images capture a triangular castle-like tower located on the Mediterranean island of Sardinia; experts investigate 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.

Drone images capture oddly shaped towers in a forest clearing near Moscow.

Satellites capture a series of zigzagging patterns in Polish woodlands.

Drone images capture enormous holes scattered along the Dead Sea coastline.

Satellites capture bizarre markings etched deep in the mountains of Spain.